CVE-2023-28853
HIGH severity · CVSS 7.7 · CWE-90
7.7CVSS HIGH
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/mastodon/mastodon/pull/24379 ↗
Additional information
- NVD record
- https://github.com/mastodon/mastodon/pull/24379Patch
- https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqvAdvisory
- http://www.openwall.com/lists/oss-security/2023/07/06/6
- 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