Search criteria
3 vulnerabilities by OpenSC
CVE-2025-24032 (GCVE-0-2025-24032)
Vulnerability from cvelistv5 – Published: 2025-02-10 15:43 – Updated: 2025-05-21 15:48
VLAI?
Summary
PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. Prior to version 0.6.13, if cert_policy is set to none (the default value), then pam_pkcs11 will only check if the user is capable of logging into the token. An attacker may create a different token with the user's public data (e.g. the user's certificate) and a PIN known to the attacker. If no signature with the private key is required, then the attacker may now login as user with that created token. The default to *not* check the private key's signature has been changed with commit commi6638576892b59a99389043c90a1e7dd4d783b921, so that all versions starting with pam_pkcs11-0.6.0 should be affected. As a workaround, in `pam_pkcs11.conf`, set at least `cert_policy = signature;`.
Severity ?
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenSC | pam_pkcs11 |
Affected:
< 0.6.13
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-24032",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-10T16:20:48.577434Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-12T15:45:25.238Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-05-21T15:48:59.150Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00021.html"
},
{
"url": "https://www.vicarius.io/vsociety/posts/cve-2025-24032-detect-vulnerability-in-linux-pam-module"
},
{
"url": "https://www.vicarius.io/vsociety/posts/cve-2025-24032-mitigate-linux-pam-module-vulnerability"
}
],
"title": "CVE Program Container",
"x_generator": {
"engine": "ADPogram 0.0.1"
}
}
],
"cna": {
"affected": [
{
"product": "pam_pkcs11",
"vendor": "OpenSC",
"versions": [
{
"status": "affected",
"version": "\u003c 0.6.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. Prior to version 0.6.13, if cert_policy is set to none (the default value), then pam_pkcs11 will only check if the user is capable of logging into the token. An attacker may create a different token with the user\u0027s public data (e.g. the user\u0027s certificate) and a PIN known to the attacker. If no signature with the private key is required, then the attacker may now login as user with that created token. The default to *not* check the private key\u0027s signature has been changed with commit commi6638576892b59a99389043c90a1e7dd4d783b921, so that all versions starting with pam_pkcs11-0.6.0 should be affected. As a workaround, in `pam_pkcs11.conf`, set at least `cert_policy = signature;`."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:L/SI:L/SA:L",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287: Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-10T15:43:47.166Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-8r8p-7mgp-vf56",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-8r8p-7mgp-vf56"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/commit/470263258d1ac59c5eade439c4d9caba0097e6e6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/commit/470263258d1ac59c5eade439c4d9caba0097e6e6"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/commit/b665b287ff955bbbd9539252ff9f9e2754c3fb48",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/commit/b665b287ff955bbbd9539252ff9f9e2754c3fb48"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/commit/d9530167966a77115db6e885d459382a2e52ee9e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/commit/d9530167966a77115db6e885d459382a2e52ee9e"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/releases/tag/pam_pkcs11-0.6.13",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/releases/tag/pam_pkcs11-0.6.13"
}
],
"source": {
"advisory": "GHSA-8r8p-7mgp-vf56",
"discovery": "UNKNOWN"
},
"title": "PAM-PKCS#11 vulnerable to authentication bypass with default value for `cert_policy` (`none`)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-24032",
"datePublished": "2025-02-10T15:43:47.166Z",
"dateReserved": "2025-01-16T17:31:06.460Z",
"dateUpdated": "2025-05-21T15:48:59.150Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2025-24031 (GCVE-0-2025-24031)
Vulnerability from cvelistv5 – Published: 2025-02-10 15:38 – Updated: 2025-02-10 15:50
VLAI?
Summary
PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. In versions 0.6.12 and prior, the pam_pkcs11 module segfaults when a user presses ctrl-c/ctrl-d when they are asked for a PIN. When a user enters no PIN at all, `pam_get_pwd` will never initialize the password buffer pointer and as such `cleanse` will try to dereference an uninitialized pointer. On my system this pointer happens to have the value 3 most of the time when running sudo and as such it will segfault. The most likely impact to a system affected by this issue is an availability impact due to a daemon that uses PAM crashing. As of time of publication, a patch for the issue is unavailable.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenSC | pam_pkcs11 |
Affected:
<= 0.6.12
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-24031",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-10T15:50:34.830337Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-10T15:50:52.981Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-wvr3-c9x3-9mff"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "pam_pkcs11",
"vendor": "OpenSC",
"versions": [
{
"status": "affected",
"version": "\u003c= 0.6.12"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "PAM-PKCS#11 is a Linux-PAM login module that allows a X.509 certificate based user login. In versions 0.6.12 and prior, the pam_pkcs11 module segfaults when a user presses ctrl-c/ctrl-d when they are asked for a PIN. When a user enters no PIN at all, `pam_get_pwd` will never initialize the password buffer pointer and as such `cleanse` will try to dereference an uninitialized pointer. On my system this pointer happens to have the value 3 most of the time when running sudo and as such it will segfault. The most likely impact to a system affected by this issue is an availability impact due to a daemon that uses PAM crashing. As of time of publication, a patch for the issue is unavailable."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-10T15:38:39.876Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-wvr3-c9x3-9mff",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-wvr3-c9x3-9mff"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/blob/bb2e3f3a95e44fdf44b0d5a4b377db3179021380/src/pam_pkcs11/pam_pkcs11.c#L211",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/blob/bb2e3f3a95e44fdf44b0d5a4b377db3179021380/src/pam_pkcs11/pam_pkcs11.c#L211"
},
{
"name": "https://github.com/OpenSC/pam_pkcs11/blob/bb2e3f3a95e44fdf44b0d5a4b377db3179021380/src/pam_pkcs11/pam_pkcs11.c#L797",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenSC/pam_pkcs11/blob/bb2e3f3a95e44fdf44b0d5a4b377db3179021380/src/pam_pkcs11/pam_pkcs11.c#L797"
}
],
"source": {
"advisory": "GHSA-wvr3-c9x3-9mff",
"discovery": "UNKNOWN"
},
"title": "PAM-PKCS#11 vulnerable to segmentation fault on ctrl-c/ctrl-d when asked for PIN"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-24031",
"datePublished": "2025-02-10T15:38:39.876Z",
"dateReserved": "2025-01-16T17:31:06.460Z",
"dateUpdated": "2025-02-10T15:50:52.981Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2013-1866 (GCVE-0-2013-1866)
Vulnerability from cvelistv5 – Published: 2020-01-30 13:07 – Updated: 2024-08-06 15:20
VLAI?
Summary
OpenSC OpenSC.tokend has an Arbitrary File Creation/Overwrite Vulnerability
Severity ?
No CVSS data available.
CWE
- Arbitrary File Creation or Overwrite Vulnerability
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenSC | OpenSC.tokend |
Affected:
2013
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-06T15:20:35.174Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/58620"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/82987"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "OpenSC.tokend",
"vendor": "OpenSC",
"versions": [
{
"status": "affected",
"version": "2013"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenSC OpenSC.tokend has an Arbitrary File Creation/Overwrite Vulnerability"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Arbitrary File Creation or Overwrite Vulnerability",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-01-30T13:07:53",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "http://www.securityfocus.com/bid/58620"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/82987"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2013-1866",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "OpenSC.tokend",
"version": {
"version_data": [
{
"version_value": "2013"
}
]
}
}
]
},
"vendor_name": "OpenSC"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "OpenSC OpenSC.tokend has an Arbitrary File Creation/Overwrite Vulnerability"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Arbitrary File Creation or Overwrite Vulnerability"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://www.securityfocus.com/bid/58620",
"refsource": "MISC",
"url": "http://www.securityfocus.com/bid/58620"
},
{
"name": "https://exchange.xforce.ibmcloud.com/vulnerabilities/82987",
"refsource": "MISC",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/82987"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2013-1866",
"datePublished": "2020-01-30T13:07:53",
"dateReserved": "2013-02-19T00:00:00",
"dateUpdated": "2024-08-06T15:20:35.174Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}