Mastodon's blind LDAP injection in login allows the attacker to leak arbitrary attributes from LDAP database
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 1.3%
exploitation probability
1.3%top 33% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected products
mastodon · mastodonReferences
https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/models/concerns/ldap_authenticable.rb#L7-L14https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/config/initializers/devise.rb#L398-L414https://github.com/mastodon/mastodon/pull/24379https://github.com/mastodon/mastodon/releases/tag/v3.5.8https://github.com/mastodon/mastodon/releases/tag/v4.0.4https://github.com/mastodon/mastodon/releases/tag/v4.1.2https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqvhttp://www.openwall.com/lists/oss-security/2023/07/06/6