CWE-327
Allowed-with-ReviewUse of a Broken or Risky Cryptographic Algorithm
Abstraction: Class · Status: Draft
The product uses a broken or risky cryptographic algorithm or protocol.
960 vulnerabilities reference this CWE, most recent first.
GHSA-R8M3-W58Q-QP9H
Vulnerability from github – Published: 2026-02-12 21:31 – Updated: 2026-02-12 21:31newbee-mall stores and verifies user passwords using an unsalted MD5 hashing algorithm. The implementation does not incorporate per-user salts or computational cost controls, enabling attackers who obtain password hashes through database exposure, backup leakage, or other compromise vectors to rapidly recover plaintext credentials via offline attacks.
{
"affected": [],
"aliases": [
"CVE-2026-26219"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-12T19:15:52Z",
"severity": "CRITICAL"
},
"details": "newbee-mall stores and verifies user passwords using an unsalted MD5 hashing algorithm. The implementation does not incorporate per-user salts or computational cost controls, enabling attackers who obtain password hashes through database exposure, backup leakage, or other compromise vectors to rapidly recover plaintext credentials via offline attacks.",
"id": "GHSA-r8m3-w58q-qp9h",
"modified": "2026-02-12T21:31:27Z",
"published": "2026-02-12T21:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26219"
},
{
"type": "WEB",
"url": "https://github.com/newbee-ltd/newbee-mall/issues/119"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/newbee-mall-unsalted-md5-password-hashing-enables-offline-credential-cracking"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-R8MV-JQPQ-MX92
Vulnerability from github – Published: 2022-08-17 00:00 – Updated: 2024-02-13 18:38Emerson OpenBSI through 2022-04-29 mishandles credential storage. It is an engineering environment for the ControlWave and Bristol Babcock line of RTUs. This environment provides access control functionality through user authentication and privilege management. The credentials for various users are stored insecurely in the SecUsers.ini file by using a simple string transformation rather than a cryptographic mechanism.
{
"affected": [],
"aliases": [
"CVE-2022-29959"
],
"database_specific": {
"cwe_ids": [
"CWE-327",
"CWE-522"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-16T13:15:00Z",
"severity": "MODERATE"
},
"details": "Emerson OpenBSI through 2022-04-29 mishandles credential storage. It is an engineering environment for the ControlWave and Bristol Babcock line of RTUs. This environment provides access control functionality through user authentication and privilege management. The credentials for various users are stored insecurely in the SecUsers.ini file by using a simple string transformation rather than a cryptographic mechanism.",
"id": "GHSA-r8mv-jqpq-mx92",
"modified": "2024-02-13T18:38:22Z",
"published": "2022-08-17T00:00:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29959"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-22-221-03"
},
{
"type": "WEB",
"url": "https://www.forescout.com/blog"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-R8QV-5MC6-CP4C
Vulnerability from github – Published: 2023-08-08 03:30 – Updated: 2024-04-04 06:37SAP PowerDesigner - version 16.7, queries all password hashes in the backend database and compares it with the user provided one during login attempt, which might allow an attacker to access password hashes from the client's memory.
{
"affected": [],
"aliases": [
"CVE-2023-37484"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-08T01:15:17Z",
"severity": "MODERATE"
},
"details": "SAP PowerDesigner - version 16.7, queries all password hashes in the backend database and compares it with the user provided one during login attempt, which might allow an attacker to access password hashes from the client\u0027s memory.\n\n",
"id": "GHSA-r8qv-5mc6-cp4c",
"modified": "2024-04-04T06:37:08Z",
"published": "2023-08-08T03:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37484"
},
{
"type": "WEB",
"url": "https://me.sap.com/notes/3341460"
},
{
"type": "WEB",
"url": "https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-R9P9-MRJM-926W
Vulnerability from github – Published: 2021-03-08 16:06 – Updated: 2023-09-06 23:43The npm package elliptic before version 6.5.4 are vulnerable to Cryptographic Issues via the secp256k1 implementation in elliptic/ec/key.js. There is no check to confirm that the public key point passed into the derive function actually exists on the secp256k1 curve. This results in the potential for the private key used in this implementation to be revealed after a number of ECDH operations are performed.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "elliptic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.5.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-28498"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-08T16:02:43Z",
"nvd_published_at": "2021-02-02T19:15:00Z",
"severity": "MODERATE"
},
"details": "The npm package `elliptic` before version 6.5.4 are vulnerable to Cryptographic Issues via the secp256k1 implementation in elliptic/ec/key.js. There is no check to confirm that the public key point passed into the derive function actually exists on the secp256k1 curve. This results in the potential for the private key used in this implementation to be revealed after a number of ECDH operations are performed.",
"id": "GHSA-r9p9-mrjm-926w",
"modified": "2023-09-06T23:43:30Z",
"published": "2021-03-08T16:06:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28498"
},
{
"type": "WEB",
"url": "https://github.com/indutny/elliptic/pull/244/commits"
},
{
"type": "WEB",
"url": "https://github.com/indutny/elliptic/commit/441b7428b0e8f6636c42118ad2aaa186d3c34c3f"
},
{
"type": "WEB",
"url": "https://github.com/christianlundkvist/blog/blob/master/2020_05_26_secp256k1_twist_attacks/secp256k1_twist_attacks.md"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1069836"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JS-ELLIPTIC-1064899"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/package/elliptic"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Elliptic Uses a Broken or Risky Cryptographic Algorithm"
}
GHSA-RCPF-M3CR-FH99
Vulnerability from github – Published: 2026-03-16 15:30 – Updated: 2026-03-31 00:31Use of a broken or risky cryptographic algorithm in Smart Switch prior to version 3.7.69.15 allows remote attackers to configure a downgraded scheme for authentication.
{
"affected": [],
"aliases": [
"CVE-2026-20996"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-16T14:18:10Z",
"severity": "HIGH"
},
"details": "Use of a broken or risky cryptographic algorithm in Smart Switch prior to version 3.7.69.15 allows remote attackers to configure a downgraded scheme for authentication.",
"id": "GHSA-rcpf-m3cr-fh99",
"modified": "2026-03-31T00:31:12Z",
"published": "2026-03-16T15:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20996"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/serviceWeb.smsb?year=2026\u0026month=03"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-RF4H-9CJ8-VPH5
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01An exploitable Weak Cryptography for Passwords vulnerability exists in the web server functionality of Moxa EDR-810 V4.1 build 17030317. An attacker could intercept weakly encrypted passwords and could brute force them.
{
"affected": [],
"aliases": [
"CVE-2017-12129"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-14T20:29:00Z",
"severity": "HIGH"
},
"details": "An exploitable Weak Cryptography for Passwords vulnerability exists in the web server functionality of Moxa EDR-810 V4.1 build 17030317. An attacker could intercept weakly encrypted passwords and could brute force them.",
"id": "GHSA-rf4h-9cj8-vph5",
"modified": "2022-05-13T01:01:36Z",
"published": "2022-05-13T01:01:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12129"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0481"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-RFF8-7PH7-XCHR
Vulnerability from github – Published: 2024-12-05 15:31 – Updated: 2025-02-27 18:31MD5 Checksum Bypass vulnerabilities where found exploiting a weakness in the way an application dependency calculates or validates MD5 checksum hashes. Affected products:
ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01; MATRIX Series v3.08.01
{
"affected": [],
"aliases": [
"CVE-2024-48847"
],
"database_specific": {
"cwe_ids": [
"CWE-327",
"CWE-328"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-05T13:15:07Z",
"severity": "HIGH"
},
"details": "MD5 Checksum Bypass vulnerabilities where found exploiting a weakness in the way an application dependency calculates or validates MD5 checksum hashes.\u00a0\nAffected products:\n\n\nABB ASPECT - Enterprise v3.08.01; \nNEXUS Series v3.08.01; \nMATRIX Series v3.08.01",
"id": "GHSA-rff8-7ph7-xchr",
"modified": "2025-02-27T18:31:02Z",
"published": "2024-12-05T15:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48847"
},
{
"type": "WEB",
"url": "https://search.abb.com/library/Download.aspx?DocumentID=9AKK108469A7497\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-RFF8-98WF-8RV4
Vulnerability from github – Published: 2026-07-05 12:30 – Updated: 2026-07-05 12:30A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
{
"affected": [],
"aliases": [
"CVE-2026-14742"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-05T11:16:27Z",
"severity": "LOW"
},
"details": "A vulnerability was determined in langchain-ai langgraph up to 1.2.4. The affected element is the function _freeze of the file libs/langgraph/langgraph/_internal/_cache.py of the component Task Result Cache. This manipulation of the argument default_cache_key causes use of weak hash. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.",
"id": "GHSA-rff8-98wf-8rv4",
"modified": "2026-07-05T12:30:25Z",
"published": "2026-07-05T12:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14742"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langgraph/issues/8009"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langgraph/pull/8069"
},
{
"type": "WEB",
"url": "https://github.com/langchain-ai/langgraph"
},
{
"type": "WEB",
"url": "https://vuldb.com/cve/CVE-2026-14742"
},
{
"type": "WEB",
"url": "https://vuldb.com/submit/849217"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/376328"
},
{
"type": "WEB",
"url": "https://vuldb.com/vuln/376328/cti"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-RFHP-6X8P-V5P4
Vulnerability from github – Published: 2022-05-13 01:47 – Updated: 2022-05-13 01:47OceanStor 5800 V3 with software V300R002C00 and V300R002C10, OceanStor 6900 V3 V300R001C00 has an information leakage vulnerability. Products use TLS1.0 to encrypt. Attackers can exploit TLS1.0's vulnerabilities to decrypt data to obtain sensitive information.
{
"affected": [],
"aliases": [
"CVE-2017-8157"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-11-22T19:29:00Z",
"severity": "MODERATE"
},
"details": "OceanStor 5800 V3 with software V300R002C00 and V300R002C10, OceanStor 6900 V3 V300R001C00 has an information leakage vulnerability. Products use TLS1.0 to encrypt. Attackers can exploit TLS1.0\u0027s vulnerabilities to decrypt data to obtain sensitive information.",
"id": "GHSA-rfhp-6x8p-v5p4",
"modified": "2022-05-13T01:47:20Z",
"published": "2022-05-13T01:47:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-8157"
},
{
"type": "WEB",
"url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170920-01-oceanstor-en"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RFMP-JVR7-HX78
Vulnerability from github – Published: 2022-01-06 20:41 – Updated: 2022-04-29 20:27In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.11.4"
},
"package": {
"ecosystem": "Maven",
"name": "org.apache.nifi:nifi"
},
"ranges": [
{
"events": [
{
"introduced": "1.2.0"
},
{
"fixed": "1.12.0-RC1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-9491"
],
"database_specific": {
"cwe_ids": [
"CWE-327"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-29T16:50:01Z",
"nvd_published_at": "2020-10-01T20:15:00Z",
"severity": "HIGH"
},
"details": "In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.",
"id": "GHSA-rfmp-jvr7-hx78",
"modified": "2022-04-29T20:27:44Z",
"published": "2022-01-06T20:41:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9491"
},
{
"type": "WEB",
"url": "https://github.com/apache/nifi/commit/441781cec50f77d9f1e65093f55bbd614b8c5ec6"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/nifi"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718@%3Ccommits.nifi.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf@%3Ccommits.nifi.apache.org%3E"
},
{
"type": "WEB",
"url": "https://nifi.apache.org/security#CVE-2020-9491"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Inadequate Encryption Strength in Apache NiFi"
}
Mitigation MIT-24
Strategy: Libraries or Frameworks
- When there is a need to store or transmit sensitive data, use strong, up-to-date cryptographic algorithms to encrypt that data. Select a well-vetted algorithm that is currently considered to be strong by experts in the field, and use well-tested implementations. As with all cryptographic mechanisms, the source code should be available for analysis.
- For example, US government systems require FIPS 140-2 certification [REF-1192].
- Do not develop custom or private cryptographic algorithms. They will likely be exposed to attacks that are well-understood by cryptographers. Reverse engineering techniques are mature. If the algorithm can be compromised if attackers find out how it works, then it is especially weak.
- Periodically ensure that the cryptography has not become obsolete. Some older algorithms, once thought to require a billion years of computing time, can now be broken in days or hours. This includes MD4, MD5, SHA1, DES, and other algorithms that were once regarded as strong. [REF-267]
Mitigation MIT-52
Ensure that the design allows one cryptographic algorithm to be replaced with another in the next generation or version. Where possible, use wrappers to make the interfaces uniform. This will make it easier to upgrade to stronger algorithms. With hardware, design the product at the Intellectual Property (IP) level so that one cryptographic algorithm can be replaced with another in the next generation of the hardware product.
Mitigation
Carefully manage and protect cryptographic keys (see CWE-320). If the keys can be guessed or stolen, then the strength of the cryptography itself is irrelevant.
Mitigation MIT-4
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Industry-standard implementations will save development time and may be more likely to avoid errors that can occur during implementation of cryptographic algorithms. Consider the ESAPI Encryption feature.
Mitigation MIT-25
When using industry-approved techniques, use them correctly. Don't cut corners by skipping resource-intensive steps (CWE-325). These steps are often essential for preventing common attacks.
CAPEC-20: Encryption Brute Forcing
An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-473: Signature Spoof
An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.
CAPEC-608: Cryptanalysis of Cellular Encryption
The use of cryptanalytic techniques to derive cryptographic keys or otherwise effectively defeat cellular encryption to reveal traffic content. Some cellular encryption algorithms such as A5/1 and A5/2 (specified for GSM use) are known to be vulnerable to such attacks and commercial tools are available to execute these attacks and decrypt mobile phone conversations in real-time. Newer encryption algorithms in use by UMTS and LTE are stronger and currently believed to be less vulnerable to these types of attacks. Note, however, that an attacker with a Cellular Rogue Base Station can force the use of weak cellular encryption even by newer mobile devices.
CAPEC-614: Rooting SIM Cards
SIM cards are the de facto trust anchor of mobile devices worldwide. The cards protect the mobile identity of subscribers, associate devices with phone numbers, and increasingly store payment credentials, for example in NFC-enabled phones with mobile wallets. This attack leverages over-the-air (OTA) updates deployed via cryptographically-secured SMS messages to deliver executable code to the SIM. By cracking the DES key, an attacker can send properly signed binary SMS messages to a device, which are treated as Java applets and are executed on the SIM. These applets are allowed to send SMS, change voicemail numbers, and query the phone location, among many other predefined functions. These capabilities alone provide plenty of potential for abuse.
CAPEC-97: Cryptanalysis
Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction). Sometimes the weakness is not in the cryptographic algorithm itself, but rather in how it is applied that makes cryptanalysis successful. An attacker may have other goals as well, such as: Total Break (finding the secret key), Global Deduction (finding a functionally equivalent algorithm for encryption and decryption that does not require knowledge of the secret key), Information Deduction (gaining some information about plaintexts or ciphertexts that was not previously known) and Distinguishing Algorithm (the attacker has the ability to distinguish the output of the encryption (ciphertext) from a random permutation of bits).