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32 vulnerabilities by putty
CVE-2024-31497 (GCVE-0-2024-31497)
Vulnerability from cvelistv5 – Published: 2024-04-15 00:00 – Updated: 2025-11-04 22:06
VLAI?
Summary
In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant. The required set of signed messages may be publicly readable because they are stored in a public Git service that supports use of SSH for commit signing, and the signatures were made by Pageant through an agent-forwarding mechanism. In other words, an adversary may already have enough signature information to compromise a victim's private key, even if there is no further use of vulnerable PuTTY versions. After a key compromise, an adversary may be able to conduct supply-chain attacks on software maintained in Git. A second, independent scenario is that the adversary is an operator of an SSH server to which the victim authenticates (for remote login or file copy), even though this server is not fully trusted by the victim, and the victim uses the same private key for SSH connections to other services operated by other entities. Here, the rogue server operator (who would otherwise have no way to determine the victim's private key) can derive the victim's private key, and then use it for unauthorized access to those other services. If the other services include Git services, then again it may be possible to conduct supply-chain attacks on software maintained in Git. This also affects, for example, FileZilla before 3.67.0, WinSCP before 6.3.3, TortoiseGit before 2.15.0.1, and TortoiseSVN through 1.14.6.
Severity ?
5.9 (Medium)
CWE
- n/a
Assigner
References
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CVE-2023-48795 (GCVE-0-2023-48795)
Vulnerability from cvelistv5 – Published: 2023-12-18 00:00 – Updated: 2025-11-04 22:05
VLAI?
Summary
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
Severity ?
5.9 (Medium)
CWE
- n/a
Assigner
References
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],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-48795",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2023-12-22T05:01:05.519910Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
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"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-354",
"description": "CWE-354 Improper Validation of Integrity Check Value",
"lang": "en",
"type": "CWE"
}
]
}
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"vendor": "n/a",
"versions": [
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"status": "affected",
"version": "n/a"
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"lang": "en",
"value": "The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH\u0027s use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust."
}
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"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
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"url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html"
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{
"url": "https://matt.ucc.asn.au/dropbear/CHANGES"
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{
"url": "https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES"
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{
"url": "https://www.netsarang.com/en/xshell-update-history/"
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{
"url": "https://www.paramiko.org/changelog.html"
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{
"url": "https://www.openssh.com/openbsd.html"
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{
"url": "https://github.com/openssh/openssh-portable/commits/master"
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{
"url": "https://groups.google.com/g/golang-announce/c/-n5WqVC18LQ"
},
{
"url": "https://www.bitvise.com/ssh-server-version-history"
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{
"url": "https://github.com/ronf/asyncssh/tags"
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{
"url": "https://gitlab.com/libssh/libssh-mirror/-/tags"
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{
"url": "https://www.reddit.com/r/sysadmin/comments/18idv52/cve202348795_why_is_this_cve_still_undisclosed/"
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{
"url": "https://github.com/erlang/otp/blob/d1b43dc0f1361d2ad67601169e90a7fc50bb0369/lib/ssh/doc/src/notes.xml#L39-L42"
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{
"url": "https://www.openssh.com/txt/release-9.6"
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{
"url": "https://jadaptive.com/important-java-ssh-security-update-new-ssh-vulnerability-discovered-cve-2023-48795/"
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"url": "https://thorntech.com/cve-2023-48795-and-sftp-gateway/"
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{
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"url": "https://news.ycombinator.com/item?id=38685286"
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{
"name": "[oss-security] 20231218 CVE-2023-48795: Prefix Truncation Attacks in SSH Specification (Terrapin Attack)",
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{
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{
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{
"url": "https://security-tracker.debian.org/tracker/source-package/libssh2"
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{
"url": "https://security-tracker.debian.org/tracker/source-package/proftpd-dfsg"
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{
"url": "https://security-tracker.debian.org/tracker/CVE-2023-48795"
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254210"
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{
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{
"url": "https://ubuntu.com/security/CVE-2023-48795"
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{
"url": "https://www.suse.com/c/suse-addresses-the-ssh-v2-protocol-terrapin-attack-aka-cve-2023-48795/"
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{
"url": "https://access.redhat.com/security/cve/cve-2023-48795"
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{
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{
"url": "https://github.com/drakkan/sftpgo/releases/tag/v2.5.6"
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{
"url": "https://github.com/libssh2/libssh2/pull/1291"
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{
"url": "https://forum.netgate.com/topic/184941/terrapin-ssh-attack"
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{
"url": "https://github.com/jtesta/ssh-audit/commit/8e972c5e94b460379fe0c7d20209c16df81538a5"
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{
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{
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{
"url": "https://github.com/TeraTermProject/teraterm/releases/tag/v5.1"
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{
"url": "https://github.com/mwiede/jsch/compare/jsch-0.2.14...jsch-0.2.15"
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{
"url": "https://oryx-embedded.com/download/#changelog"
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{
"url": "https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update"
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{
"url": "https://github.com/connectbot/sshlib/compare/2.2.21...2.2.22"
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{
"url": "https://github.com/connectbot/sshlib/commit/5c8b534f6e97db7ac0e0e579331213aa25c173ab"
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{
"url": "https://github.com/mscdex/ssh2/commit/97b223f8891b96d6fc054df5ab1d5a1a545da2a3"
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{
"url": "https://nest.pijul.com/pijul/thrussh/changes/D6H7OWTTMHHX6BTB3B6MNBOBX2L66CBL4LGSEUSAI2MCRCJDQFRQC"
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{
"url": "https://crates.io/crates/thrussh/versions"
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{
"url": "https://github.com/NixOS/nixpkgs/pull/275249"
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{
"name": "[oss-security] 20231219 Re: CVE-2023-48795: Prefix Truncation Attacks in SSH Specification (Terrapin Attack)",
"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2023/12/19/5"
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{
"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-23:19.openssh.asc"
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{
"url": "https://arstechnica.com/security/2023/12/hackers-can-break-ssh-channel-integrity-using-novel-data-corruption-attack/"
},
{
"name": "[oss-security] 20231220 Re: CVE-2023-48795: Prefix Truncation Attacks in SSH Specification (Terrapin Attack)",
"tags": [
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{
"url": "http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html"
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{
"url": "https://github.com/proftpd/proftpd/blob/d21e7a2e47e9b38f709bec58e3fa711f759ad0e1/RELEASE_NOTES"
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{
"url": "https://github.com/proftpd/proftpd/blob/0a7ea9b0ba9fcdf368374a226370d08f10397d99/RELEASE_NOTES"
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{
"url": "https://github.com/apache/mina-sshd/issues/445"
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{
"url": "https://github.com/hierynomus/sshj/issues/916"
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"url": "https://github.com/janmojzis/tinyssh/issues/81"
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{
"url": "https://www.openwall.com/lists/oss-security/2023/12/20/3"
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{
"url": "https://security-tracker.debian.org/tracker/source-package/trilead-ssh2"
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{
"url": "https://github.com/net-ssh/net-ssh/blob/2e65064a52d73396bfc3806c9196fc8108f33cd8/CHANGES.txt#L14-L16"
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{
"name": "FEDORA-2023-0733306be9",
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{
"name": "DSA-5586",
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{
"url": "https://www.lancom-systems.de/service-support/allgemeine-sicherheitshinweise#c243508"
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{
"url": "https://www.theregister.com/2023/12/20/terrapin_attack_ssh"
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{
"url": "https://filezilla-project.org/versions.php"
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{
"url": "https://nova.app/releases/#v11.8"
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{
"url": "https://roumenpetrov.info/secsh/#news20231220"
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{
"url": "https://www.vandyke.com/products/securecrt/history.txt"
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{
"url": "https://help.panic.com/releasenotes/transmit5/"
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{
"url": "https://github.com/PowerShell/Win32-OpenSSH/releases/tag/v9.5.0.0p1-Beta"
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{
"url": "https://github.com/PowerShell/Win32-OpenSSH/issues/2189"
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{
"url": "https://winscp.net/eng/docs/history#6.2.2"
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{
"url": "https://www.bitvise.com/ssh-client-version-history#933"
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{
"url": "https://github.com/cyd01/KiTTY/issues/520"
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{
"name": "DSA-5588",
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{
"url": "https://github.com/ssh-mitm/ssh-mitm/issues/165"
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{
"url": "https://news.ycombinator.com/item?id=38732005"
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{
"name": "[debian-lts-announce] 20231226 [SECURITY] [DLA 3694-1] openssh security update",
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{
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{
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{
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{
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{
"url": "https://security.netapp.com/advisory/ntap-20240105-0004/"
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{
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{
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{
"name": "FEDORA-2024-71c2c6526c",
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{
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},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-48795",
"datePublished": "2023-12-18T00:00:00.000Z",
"dateReserved": "2023-11-20T00:00:00.000Z",
"dateUpdated": "2025-11-04T22:05:21.417Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2021-36367 (GCVE-0-2021-36367)
Vulnerability from cvelistv5 – Published: 2021-07-09 00:00 – Updated: 2024-08-04 00:54
VLAI?
Summary
PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).
Severity ?
8.1 (High)
CWE
- n/a
Assigner
References
{
"containers": {
"adp": [
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CVE-2021-33500 (GCVE-0-2021-33500)
Vulnerability from cvelistv5 – Published: 2021-05-21 19:42 – Updated: 2024-08-03 23:50
VLAI?
Summary
PuTTY before 0.75 on Windows allows remote servers to cause a denial of service (Windows GUI hang) by telling the PuTTY window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. NOTE: the same attack methodology may affect some OS-level GUIs on Linux or other platforms for similar reasons.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2020-14002 (GCVE-0-2020-14002)
Vulnerability from cvelistv5 – Published: 2020-06-29 00:00 – Updated: 2024-08-04 12:32
VLAI?
Summary
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2019-17067 (GCVE-0-2019-17067)
Vulnerability from cvelistv5 – Published: 2019-10-01 16:55 – Updated: 2024-08-05 01:33
VLAI?
Summary
PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2019-17068 (GCVE-0-2019-17068)
Vulnerability from cvelistv5 – Published: 2019-10-01 16:55 – Updated: 2024-08-05 01:33
VLAI?
Summary
PuTTY before 0.73 mishandles the "bracketed paste mode" protection mechanism, which may allow a session to be affected by malicious clipboard content.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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CVE-2019-17069 (GCVE-0-2019-17069)
Vulnerability from cvelistv5 – Published: 2019-10-01 00:00 – Updated: 2024-08-05 01:33
VLAI?
Summary
PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via an SSH1_MSG_DISCONNECT message.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-9898 (GCVE-0-2019-9898)
Vulnerability from cvelistv5 – Published: 2019-03-21 02:31 – Updated: 2024-08-04 22:01
VLAI?
Summary
Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2019-9897 (GCVE-0-2019-9897)
Vulnerability from cvelistv5 – Published: 2019-03-21 02:31 – Updated: 2024-08-04 22:01
VLAI?
Summary
Multiple denial-of-service attacks that can be triggered by writing to the terminal exist in PuTTY versions before 0.71.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-9896 (GCVE-0-2019-9896)
Vulnerability from cvelistv5 – Published: 2019-03-21 02:31 – Updated: 2024-08-04 22:01
VLAI?
Summary
In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directory as the executable.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-9895 (GCVE-0-2019-9895)
Vulnerability from cvelistv5 – Published: 2019-03-21 02:31 – Updated: 2024-08-04 22:01
VLAI?
Summary
In PuTTY versions before 0.71 on Unix, a remotely triggerable buffer overflow exists in any kind of server-to-client forwarding.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2019-9894 (GCVE-0-2019-9894)
Vulnerability from cvelistv5 – Published: 2019-03-21 02:30 – Updated: 2024-08-04 22:01
VLAI?
Summary
A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2017-6542 (GCVE-0-2017-6542)
Vulnerability from cvelistv5 – Published: 2017-03-27 17:00 – Updated: 2024-08-05 15:33
VLAI?
Summary
The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2016-6167 (GCVE-0-2016-6167)
Vulnerability from cvelistv5 – Published: 2017-01-30 22:00 – Updated: 2024-08-06 01:22
VLAI?
Summary
Multiple untrusted search path vulnerabilities in Putty beta 0.67 allow local users to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) UxTheme.dll or (2) ntmarta.dll file in the current working directory.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2015-2157 (GCVE-0-2015-2157)
Vulnerability from cvelistv5 – Published: 2015-03-27 14:00 – Updated: 2024-08-06 05:10
VLAI?
Summary
The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2011-4607 (GCVE-0-2011-4607)
Vulnerability from cvelistv5 – Published: 2013-08-23 16:00 – Updated: 2024-09-16 18:04
VLAI?
Summary
PuTTY 0.59 through 0.61 does not clear sensitive process memory when managing user replies that occur during keyboard-interactive authentication, which might allow local users to read login passwords by obtaining access to the process' memory.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2013-4852 (GCVE-0-2013-4852)
Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:59
VLAI?
Summary
Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2013-4207 (GCVE-0-2013-4207)
Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:38
VLAI?
Summary
Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2013-4208 (GCVE-0-2013-4208)
Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:38
VLAI?
Summary
The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2013-4206 (GCVE-0-2013-4206)
Vulnerability from cvelistv5 – Published: 2013-08-19 23:00 – Updated: 2024-08-06 16:38
VLAI?
Summary
Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2006-7162 (GCVE-0-2006-7162)
Vulnerability from cvelistv5 – Published: 2007-03-07 21:00 – Updated: 2024-09-16 17:18
VLAI?
Summary
PuTTY 0.59 and earlier uses weak file permissions for (1) ppk files containing private keys generated by puttygen and (2) session logs created by putty, which allows local users to gain sensitive information by reading these files.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2005-0467 (GCVE-0-2005-0467)
Vulnerability from cvelistv5 – Published: 2005-02-21 05:00 – Updated: 2024-08-07 21:13
VLAI?
Summary
Multiple integer overflows in the (1) sftp_pkt_getstring and (2) fxp_readdir_recv functions in the PSFTP and PSCP clients for PuTTY 0.56, and possibly earlier versions, allow remote malicious web sites to execute arbitrary code via SFTP responses that corrupt the heap after insufficient memory has been allocated.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2004-1440 (GCVE-0-2004-1440)
Vulnerability from cvelistv5 – Published: 2005-02-13 05:00 – Updated: 2024-08-08 00:53
VLAI?
Summary
Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, and (2) remote malicious servers to cause a denial of service (client crash) and possibly execute arbitrary code via a large bignum during authentication.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2004-1008 (GCVE-0-2004-1008)
Vulnerability from cvelistv5 – Published: 2004-12-01 05:00 – Updated: 2024-08-08 00:39
VLAI?
Summary
Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2_MSG_DEBUG packet with a modified stringlen parameter, which leads to a buffer overflow.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2003-0069 (GCVE-0-2003-0069)
Vulnerability from cvelistv5 – Published: 2004-09-01 04:00 – Updated: 2024-08-08 01:43
VLAI?
Summary
The PuTTY terminal emulator 0.53 allows attackers to modify the window title via a certain character escape sequence and then insert it back to the command line in the user's terminal, e.g. when the user views a file containing the malicious sequence, which could allow the attacker to execute arbitrary commands.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2003-0048 (GCVE-0-2003-0048)
Vulnerability from cvelistv5 – Published: 2003-02-01 05:00 – Updated: 2024-08-08 01:43
VLAI?
Summary
PuTTY 0.53b and earlier does not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steal the SSH credentials.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2002-1357 (GCVE-0-2002-1357)
Vulnerability from cvelistv5 – Published: 2002-12-17 05:00 – Updated: 2024-08-08 03:19
VLAI?
Summary
Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2002-1360 (GCVE-0-2002-1360)
Vulnerability from cvelistv5 – Published: 2002-12-17 05:00 – Updated: 2024-08-08 03:19
VLAI?
Summary
Multiple SSH2 servers and clients do not properly handle strings with null characters in them when the string length is specified by a length field, which could allow remote attackers to cause a denial of service or possibly execute arbitrary code due to interactions with the use of null-terminated strings as implemented using languages such as C, as demonstrated by the SSHredder SSH protocol test suite.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2002-1358 (GCVE-0-2002-1358)
Vulnerability from cvelistv5 – Published: 2002-12-17 05:00 – Updated: 2024-08-08 03:19
VLAI?
Summary
Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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