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CVE-2023-28853

MEDIUMCVSS 6.5/10EPSS 1.28%

Last modified

CVE-2023-28853 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
1.28%

66.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

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

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2023-28853?
CVE-2023-28853 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28853?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28853?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST