Search criteria
4 vulnerabilities found for uthenticode by trailofbits
CVE-2023-40012 (GCVE-0-2023-40012)
Vulnerability from nvd – Published: 2023-08-09 15:33 – Updated: 2024-10-03 15:15
VLAI?
Title
uthenticode EKU validation bypass
Summary
uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Versions of uthenticode prior to the 2.x series did not check Extended Key Usages in certificates, in violation of the Authenticode X.509 certificate profile. As a result, a malicious user could produce a "signed" PE file that uthenticode would verify and consider valid using an X.509 certificate that isn't entitled to produce code signatures (e.g., a SSL certificate). By design, uthenticode does not perform full-chain validation. However, the absence of EKU validation was an unintended oversight. The 2.0.0 release series includes EKU checks. There are no workarounds to this vulnerability.
Severity ?
5.9 (Medium)
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| trailofbits | uthenticode |
Affected:
< 2.0.0
|
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CVE-2023-39969 (GCVE-0-2023-39969)
Vulnerability from nvd – Published: 2023-08-09 15:34 – Updated: 2024-10-03 15:15
VLAI?
Title
uthenticode signature validation bypass vulnerability
Summary
uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Version 1.0.9 of uthenticode hashed the entire file rather than hashing sections by virtual address, in violation of the Authenticode specification. As a result, an attacker could modify code within a binary without changing its Authenticode hash, making it appear valid from uthenticode's perspective. Versions of uthenticode prior to 1.0.9 are not vulnerable to this attack, nor are versions in the 2.x series. By design, uthenticode does not perform full-chain validation. However, the malleability of signature verification introduced in 1.0.9 was an unintended oversight. The 2.x series addresses the vulnerability. Versions prior to 1.0.9 are also not vulnerable, but users are encouraged to upgrade rather than downgrade. There are no workarounds to this vulnerability.
Severity ?
9.1 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| trailofbits | uthenticode |
Affected:
= 1.0.9
|
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CVE-2023-39969 (GCVE-0-2023-39969)
Vulnerability from cvelistv5 – Published: 2023-08-09 15:34 – Updated: 2024-10-03 15:15
VLAI?
Title
uthenticode signature validation bypass vulnerability
Summary
uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Version 1.0.9 of uthenticode hashed the entire file rather than hashing sections by virtual address, in violation of the Authenticode specification. As a result, an attacker could modify code within a binary without changing its Authenticode hash, making it appear valid from uthenticode's perspective. Versions of uthenticode prior to 1.0.9 are not vulnerable to this attack, nor are versions in the 2.x series. By design, uthenticode does not perform full-chain validation. However, the malleability of signature verification introduced in 1.0.9 was an unintended oversight. The 2.x series addresses the vulnerability. Versions prior to 1.0.9 are also not vulnerable, but users are encouraged to upgrade rather than downgrade. There are no workarounds to this vulnerability.
Severity ?
9.1 (Critical)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| trailofbits | uthenticode |
Affected:
= 1.0.9
|
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CVE-2023-40012 (GCVE-0-2023-40012)
Vulnerability from cvelistv5 – Published: 2023-08-09 15:33 – Updated: 2024-10-03 15:15
VLAI?
Title
uthenticode EKU validation bypass
Summary
uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Versions of uthenticode prior to the 2.x series did not check Extended Key Usages in certificates, in violation of the Authenticode X.509 certificate profile. As a result, a malicious user could produce a "signed" PE file that uthenticode would verify and consider valid using an X.509 certificate that isn't entitled to produce code signatures (e.g., a SSL certificate). By design, uthenticode does not perform full-chain validation. However, the absence of EKU validation was an unintended oversight. The 2.0.0 release series includes EKU checks. There are no workarounds to this vulnerability.
Severity ?
5.9 (Medium)
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| trailofbits | uthenticode |
Affected:
< 2.0.0
|
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"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-03T15:15:51.372Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "uthenticode",
"vendor": "trailofbits",
"versions": [
{
"status": "affected",
"version": "\u003c 2.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "uthenticode is a small cross-platform library for partially verifying Authenticode digital signatures. Versions of uthenticode prior to the 2.x series did not check Extended Key Usages in certificates, in violation of the Authenticode X.509 certificate profile. As a result, a malicious user could produce a \"signed\" PE file that uthenticode would verify and consider valid using an X.509 certificate that isn\u0027t entitled to produce code signatures (e.g., a SSL certificate). By design, uthenticode does not perform full-chain validation. However, the absence of EKU validation was an unintended oversight. The 2.0.0 release series includes EKU checks. There are no workarounds to this vulnerability."
}
],
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-325",
"description": "CWE-325: Missing Cryptographic Step",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-347",
"description": "CWE-347: Improper Verification of Cryptographic Signature",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-08-09T15:33:54.406Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/trailofbits/uthenticode/security/advisories/GHSA-gm2f-j4rj-6xqj"
},
{
"name": "https://github.com/trailofbits/uthenticode/pull/78",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/trailofbits/uthenticode/pull/78"
},
{
"name": "https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/trailofbits/uthenticode/commit/caeb1eb62412605f71bd96ce9bb9420644b6db53"
}
],
"source": {
"advisory": "GHSA-gm2f-j4rj-6xqj",
"discovery": "UNKNOWN"
},
"title": "uthenticode EKU validation bypass"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-40012",
"datePublished": "2023-08-09T15:33:54.406Z",
"dateReserved": "2023-08-08T13:46:25.241Z",
"dateUpdated": "2024-10-03T15:15:51.372Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}