cve-2024-39894
Vulnerability from cvelistv5
Published
2024-07-02 00:00
Modified
2024-09-11 15:12
Severity ?
EPSS score ?
Summary
OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.
References
{ "containers": { "adp": [ { "affected": [ { "cpes": [ "cpe:2.3:a:openbsd:openssh:9.5:-:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "openssh", "vendor": "openbsd", "versions": [ { "lessThanOrEqual": "9.7", "status": "affected", "version": "9.5", "versionType": "custom" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } }, { "other": { "content": { "id": "CVE-2024-39894", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "timestamp": "2024-07-03T13:15:38.073610Z", "version": "2.0.3" }, "type": "ssvc" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-367", "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-07-03T13:15:54.538Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" }, { "providerMetadata": { "dateUpdated": "2024-08-02T04:33:11.961Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://www.openssh.com/txt/release-9.8" }, { "tags": [ "x_transferred" ], "url": "https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html" }, { "tags": [ "x_transferred" ], "url": "https://www.openwall.com/lists/oss-security/2024/07/02/1" }, { "name": "[oss-security] 20240703 Re: Announce: OpenSSH 9.8 released", "tags": [ "mailing-list", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/03/6" }, { "tags": [ "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20240712-0004/" }, { "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG", "tags": [ "mailing-list", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/23/4" }, { "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG", "tags": [ "mailing-list", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/23/6" }, { "name": "[oss-security] 20240728 Re: Announce: OpenSSH 9.8 released", "tags": [ "mailing-list", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/28/3" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2024-09-11T15:12:12.186999", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "url": "https://www.openssh.com/txt/release-9.8" }, { "url": "https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html" }, { "url": "https://www.openwall.com/lists/oss-security/2024/07/02/1" }, { "name": "[oss-security] 20240703 Re: Announce: OpenSSH 9.8 released", "tags": [ "mailing-list" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/03/6" }, { "url": "https://security.netapp.com/advisory/ntap-20240712-0004/" }, { "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG", "tags": [ "mailing-list" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/23/4" }, { "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG", "tags": [ "mailing-list" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/23/6" }, { "name": "[oss-security] 20240728 Re: Announce: OpenSSH 9.8 released", "tags": [ "mailing-list" ], "url": "http://www.openwall.com/lists/oss-security/2024/07/28/3" }, { "url": "https://crzphil.github.io/posts/ssh-obfuscation-bypass/" }, { "url": "https://news.ycombinator.com/item?id=41508530" } ] } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2024-39894", "datePublished": "2024-07-02T00:00:00", "dateReserved": "2024-07-02T00:00:00", "dateUpdated": "2024-09-11T15:12:12.186999", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-39894\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-07-02T18:15:03.710\",\"lastModified\":\"2024-09-11T16:15:06.003\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.\"},{\"lang\":\"es\",\"value\":\"OpenSSH 9.5 a 9.7 anterior a 9.8 a veces permite ataques de sincronizaci\u00f3n contra la entrada de contrase\u00f1a sin eco (por ejemplo, para su y Sudo) debido a un error l\u00f3gico de ObscureKeystrokeTiming. De manera similar, podr\u00edan ocurrir otros ataques de sincronizaci\u00f3n contra la entrada de teclas.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-367\"}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2024/07/03/6\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/07/23/4\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/07/23/6\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/07/28/3\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://crzphil.github.io/posts/ssh-obfuscation-bypass/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://news.ycombinator.com/item?id=41508530\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240712-0004/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.openssh.com/txt/release-9.8\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://www.openwall.com/lists/oss-security/2024/07/02/1\",\"source\":\"cve@mitre.org\"}]}}" } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.