CVE-2023-28853

moderate-risk

Published 2023-04-04

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.

Do I need to act?

1.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.7/10 High

NETWORK / LOW complexity

Affected Products (1)

Mastodon

Affected Vendors

Joinmastodon

References (16)

http://www.openwall.com/lists/oss-security/2023/07/06/6

Product https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bd...

Patch https://github.com/mastodon/mastodon/pull/24379

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.5.8

Release Notes https://github.com/mastodon/mastodon/releases/tag/v4.0.4

Release Notes https://github.com/mastodon/mastodon/releases/tag/v4.1.2

Exploit https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv

http://www.openwall.com/lists/oss-security/2023/07/06/6

Product https://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bd...

Patch https://github.com/mastodon/mastodon/pull/24379

Release Notes https://github.com/mastodon/mastodon/releases/tag/v3.5.8

Release Notes https://github.com/mastodon/mastodon/releases/tag/v4.0.4

Release Notes https://github.com/mastodon/mastodon/releases/tag/v4.1.2

Exploit https://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv

/ 100

moderate-risk

Severity 27/34 · High

Exploitability 3/34 · Minimal

Exposure 5/34 · Minimal