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February 1, 2022
Rewterz
Rewterz Threat Advisory – ICS: Advantech ADAM-3600 Vulnerability
February 2, 2022

Rewterz Threat Advisory – Multiple Samba Server Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-44141 

Samba could allow a remote authenticated attacker to obtain sensitive information. By querying a symlink inside the exported share using SMB1 with unix extensions turned on, an attacker could exploit this vulnerability to discover if a named or directory exists on the filesystem outside of the exported share.

CVE-2022-0336 

Samba could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw in the validation process of adding service principals names (SPNs) to an account. By sending a specially-crafted request, an attacker could exploit this vulnerability to impersonate arbitrary services or cause a denial of service condition on the system.

Impact

  • Information Disclosure
  • Security Bypass

Affected Vendors

Samba

Affected Products

  • Samba Samba 4.11.0
  • Samba Samba 4.12.0
  • Samba Samba 4.11.10
  • Samba Samba 4.12.3
  • Samba Samba 4.11.14
  • Samba Samba 4.12.8
  • Samba Samba 4.15.1
  • Samba Samba 4.13.17
  • Samba Samba 4.13.16
  • Samba Samba 4.14
  • Samba Samba 4.13
  • Samba Samba 4.15
  • Samba Samba 4.0.0
  • Samba Samba 4.13.0
  • Samba Samba 4.14.0
  • Samba Samba 4.15.0

Remediation

Upgrade to the latest version of Samba, available from the Samba Web site.

CVE-2021-44141

https://www.samba.org/samba/security/CVE-2021-44141.html

CVE-2022-0336

https://www.samba.org/samba/security/CVE-2022-0336.html