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GHSA-vx2x-9cff-fhjw
No affected components available
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
msPKIAccountCredentialsattribute 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.Commonlibrary 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
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data. There is a low impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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