SB2024041051 - Multiple vulnerabilities in Microsoft Windows Authentication

Description

This security bulletin contains information about 2 vulnerabilities.

1) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2024-29056)

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to use of a broken or risky cryptographic algorithm in Windows Authentication. A remote user can view some sensitive information.

2) Link following (CVE-ID: CVE-2024-21447)

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insecure link following in Windows Authentication. A local user can gain elevated privileges on the system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29056
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21447