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Vulnerability · Published Apr 4, 2023 · Assigned by GitHub_M

CVE-2023-28853Mastodon's blind LDAP injection in login allows the attacker to leak arbitrary attributes from LDAP database

High 7.7

In plain English

A high-severity security flaw in mastodon from mastodon. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)1.3%top 29.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
mastodon mastodon >= 2.5.0, < 3.5.8>= 4.0.0, < 4.0.4>= 4.1.0, < 4.1.2

Weakness: CWE-90 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References