Unrated severityNVD Advisory· Published Apr 4, 2023· Updated Feb 13, 2025
Mastodon's blind LDAP injection in login allows the attacker to leak arbitrary attributes from LDAP database
CVE-2023-28853
Description
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.
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Affected products
3Patches
Vulnerability mechanics
References
8- github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/models/concerns/ldap_authenticable.rbmitrex_refsource_MISC
- github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/config/initializers/devise.rbmitrex_refsource_MISC
- github.com/mastodon/mastodon/pull/24379mitrex_refsource_MISC
- github.com/mastodon/mastodon/releases/tag/v3.5.8mitrex_refsource_MISC
- github.com/mastodon/mastodon/releases/tag/v4.0.4mitrex_refsource_MISC
- github.com/mastodon/mastodon/releases/tag/v4.1.2mitrex_refsource_MISC
- github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqvmitrex_refsource_CONFIRM
- www.openwall.com/lists/oss-security/2023/07/06/6mitre
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