CVE-2023-28853

Summary

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Starting in version 2.5.0 and prior to versions 3.5.8, 4.0.4, and 4.1.2, the LDAP query made during login is insecure and the attacker can perform LDAP injection attack to leak arbitrary attributes from LDAP database. This issue is fixed in versions 3.5.8, 4.0.4, and 4.1.2.

Affected Software

Weaknesses

• CWE-90: CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv
• https://github.com/mastodon/mastodon/pull/24379
• https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/models/concerns/ldap_authenticable.rb#L7-L14
• https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/config/initializers/devise.rb#L398-L414
• https://github.com/mastodon/mastodon/releases/tag/v3.5.8
• https://github.com/mastodon/mastodon/releases/tag/v4.0.4
• https://github.com/mastodon/mastodon/releases/tag/v4.1.2
• http://www.openwall.com/lists/oss-security/2023/07/06/6

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv
• https://github.com/mastodon/mastodon/pull/24379
• https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/models/concerns/ldap_authenticable.rb#L7-L14
• https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/config/initializers/devise.rb#L398-L414
• https://github.com/mastodon/mastodon/releases/tag/v3.5.8
• https://github.com/mastodon/mastodon/releases/tag/v4.0.4
• https://github.com/mastodon/mastodon/releases/tag/v4.1.2
• http://www.openwall.com/lists/oss-security/2023/07/06/6

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