PT-2022-5620 · Microsoft · Windows+1

Thibault Van Geluwe De Berlaere · Published 2022-09-13 · Updated 2025-07-09 · CVE-2022-30170

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows Server versions 2008 through 2016 Windows versions 8.1 through 10 (including 1607, 1809, 20h2, 21h1, 21h2)

Description The issue is related to an elevation-of-privilege vulnerability in the Windows Credential Roaming Service, which is associated with insufficient access restrictions. This vulnerability can be exploited by an attacker to elevate their privileges. The vulnerability exists in the DSInternals.Common.Data.RoamedCredential.Save() method, which incorrectly parses the msPKIAccountCredentials LDAP attribute values. This allows a malicious actor to modify the file system of the computer where an application using this function is executed with administrative privileges.

Recommendations For Windows Server versions 2008 through 2016 and Windows versions 8.1 through 10, update to a version that includes the fix for this issue, such as DSInternals 4.8. As a temporary workaround, consider restricting access to the DSInternals.Common library and the msPKIAccountCredentials attribute in Active Directory to minimize the risk of exploitation. Avoid using the DSInternals.Common.Data.RoamedCredential.Save() method in applications with administrative privileges until the issue is resolved.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2022-06986

CVE-2022-30170

GHSA-VX2X-9CFF-FHJW

Affected Products

Windows

Windows Server

References · 23

• https://bdu.fstec.ru/vul/2022-06986 · Security Note
• https://osv.dev/vulnerability/CVE-2022-30170 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-30170 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30170 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2022-30170 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-30170 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vx2x-9cff-fhjw · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-30170 · Security Note
• https://github.com/openwall/john · Note
• https://github.com/MichaelGrafnetter/DSInternals/security/advisories/GHSA-vx2x-9cff-fhjw · Note
• https://github.com/MichaelGrafnetter/DSInternals · Note
• https://twitter.com/fletch_ai/status/1691587321676624046 · Twitter Post
• https://twitter.com/fletch_ai/status/1706898226912137302 · Twitter Post
• https://t.me/aptreports/2019 · Telegram Post
• https://cybercareers.blog/2022/11/apt29-using-windows-credential-roaming-bug-to-target-diplomats · Note