gsd-2024-20337
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2024-20337",
"id": "GSD-2024-20337"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2024-20337"
],
"details": "A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user. \r\n\r This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access.",
"id": "GSD-2024-20337",
"modified": "2023-12-13T01:21:43.043763Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "psirt@cisco.com",
"ID": "CVE-2024-20337",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Cisco Secure Client",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "4.9.00086"
},
{
"version_affected": "=",
"version_value": "4.9.01095"
},
{
"version_affected": "=",
"version_value": "4.9.02028"
},
{
"version_affected": "=",
"version_value": "4.9.03047"
},
{
"version_affected": "=",
"version_value": "4.9.03049"
},
{
"version_affected": "=",
"version_value": "4.9.04043"
},
{
"version_affected": "=",
"version_value": "4.9.04053"
},
{
"version_affected": "=",
"version_value": "4.9.05042"
},
{
"version_affected": "=",
"version_value": "4.9.06037"
},
{
"version_affected": "=",
"version_value": "4.10.00093"
},
{
"version_affected": "=",
"version_value": "4.10.01075"
},
{
"version_affected": "=",
"version_value": "4.10.02086"
},
{
"version_affected": "=",
"version_value": "4.10.03104"
},
{
"version_affected": "=",
"version_value": "4.10.04065"
},
{
"version_affected": "=",
"version_value": "4.10.04071"
},
{
"version_affected": "=",
"version_value": "4.10.05085"
},
{
"version_affected": "=",
"version_value": "4.10.05095"
},
{
"version_affected": "=",
"version_value": "4.10.05111"
},
{
"version_affected": "=",
"version_value": "4.10.06079"
},
{
"version_affected": "=",
"version_value": "4.10.06090"
},
{
"version_affected": "=",
"version_value": "4.10.07061"
},
{
"version_affected": "=",
"version_value": "4.10.07062"
},
{
"version_affected": "=",
"version_value": "4.10.07073"
},
{
"version_affected": "=",
"version_value": "5.0.00238"
},
{
"version_affected": "=",
"version_value": "5.0.00529"
},
{
"version_affected": "=",
"version_value": "5.0.00556"
},
{
"version_affected": "=",
"version_value": "5.0.01242"
},
{
"version_affected": "=",
"version_value": "5.0.02075"
},
{
"version_affected": "=",
"version_value": "5.0.03072"
},
{
"version_affected": "=",
"version_value": "5.0.03076"
},
{
"version_affected": "=",
"version_value": "5.0.04032"
},
{
"version_affected": "=",
"version_value": "5.0.05040"
},
{
"version_affected": "=",
"version_value": "5.1.0.136"
},
{
"version_affected": "=",
"version_value": "5.1.1.42"
}
]
}
}
]
},
"vendor_name": "Cisco"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user. \r\n\r This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access."
}
]
},
"exploit": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"impact": {
"cvss": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"cweId": "CWE-93",
"lang": "eng",
"value": "Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-client-crlf-W43V4G7",
"refsource": "MISC",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-client-crlf-W43V4G7"
}
]
},
"source": {
"advisory": "cisco-sa-secure-client-crlf-W43V4G7",
"defects": [
"CSCwi37512"
],
"discovery": "EXTERNAL"
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user. \r\n\r This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access."
}
],
"id": "CVE-2024-20337",
"lastModified": "2024-03-07T13:52:27.110",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 4.7,
"source": "ykramarz@cisco.com",
"type": "Secondary"
}
]
},
"published": "2024-03-06T17:15:09.580",
"references": [
{
"source": "ykramarz@cisco.com",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-client-crlf-W43V4G7"
}
],
"sourceIdentifier": "ykramarz@cisco.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-93"
}
],
"source": "ykramarz@cisco.com",
"type": "Secondary"
}
]
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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 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.