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Security Advisories: GSA_kwCzR0hTQS12eDJ4LTljZmYtZmhqd84AAwLo

DSInternals Credential Roaming Elevation of Privilege Vulnerability

Impact

A vulnerability exists in the DSInternals.Common.Data.RoamedCredential.Save() method, which incorrectly parses the msPKIAccountCredentials LDAP attribute values. As a consequence, a malicious actor would be able to modify the file system of the computer where an application using this function is executed with administrative privileges.

A similar security issue used to be present in the Windows operating system, as DSInternals re-implements the Credential Roaming feature of Windows.

Exploitability

The vulnerability can be exploited under the following circumstances:

• An attacker is able to modify the msPKIAccountCredentials attribute of a user account in Active Directory. This attribute is used by the Credential Roaming feature of Windows and each AD user can modify their own roamed credentials. AND
• A 3rd party application uses the DSInternals.Common library to export roamed credentials from Active Directory to a file system. AND
• The application has administrative privileges on the local system.

The probability of any 3rd-party product using the DSInternals.Common library being affected by this vulnerability is extremely low.

Patches

The issue had been fixed in DSInternals 4.8.

References

https://www.mandiant.com/resources/blog/apt29-windows-credential-roaming

Permalink: https://github.com/advisories/GHSA-vx2x-9cff-fhjw
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12eDJ4LTljZmYtZmhqd84AAwLo
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 1 year ago
Updated: over 1 year ago

CVSS Score: 6.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Identifiers: GHSA-vx2x-9cff-fhjw
References:

• https://github.com/MichaelGrafnetter/DSInternals/security/advisories/GHSA-vx2x-9cff-fhjw
• https://nvd.nist.gov/vuln/detail/CVE-2022-30170
• https://www.mandiant.com/resources/blog/apt29-windows-credential-roaming
• https://github.com/advisories/GHSA-vx2x-9cff-fhjw

Repository: https://github.com/MichaelGrafnetter/DSInternals
Blast Radius: 1.0

Affected Packages