GSD-2013-4314
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Aliases
Aliases
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"description": "The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \u0027\\0\u0027 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
"id": "GSD-2013-4314",
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"https://www.debian.org/security/2013/dsa-2763",
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"modified": "2023-12-13T01:22:15.938562Z",
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"cwe_ids": [
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"date": "2013-12-08",
"description": "The X509Extension in pyOpenSSL does not properly handle a `\\0` character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.",
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"pubdate": "2013-09-30",
"solution": "Upgrade to version 0.13.1 or above.",
"title": "Improper Input Validation",
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"impact": {
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"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
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"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
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"severity": "MEDIUM",
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},
"lastModifiedDate": "2013-12-08T06:00Z",
"publishedDate": "2013-09-30T21:55Z"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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