LDAP Injection in Joinmastodon Mastodon
CVE-2023-28853
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (69.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Joinmastodon Mastodon
- Mastodon — versions >= 2.5.0, < 3.5.8, >= 4.0.0, < 4.0.4, >= 4.1.0, < 4.1.2
Weakness classification (CWE)
References
- github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv (Exploit, Vendor Advisory)
- github.com/mastodon/mastodon/pull/24379 (Patch)
- github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/… (Product)
- github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/conf… (Product)
- github.com/mastodon/mastodon/releases/tag/v3.5.8 (Release Notes)
- github.com/mastodon/mastodon/releases/tag/v4.0.4 (Release Notes)
- github.com/mastodon/mastodon/releases/tag/v4.1.2 (Release Notes)
- www.openwall.com/lists/oss-security/2023/07/06/6
Frequently asked questions
- What is CVE-2023-28853?
- CVE-2023-28853 is a high-severity vulnerability in Joinmastodon Mastodon, classified under LDAP Injection. CVSS score: 7.7/10. Published 2023-04-04.
- How severe is CVE-2023-28853?
- High severity. CVSS v3 base score is 7.7 out of 10.