Is CVE-2023-28853 in the CISA KEV catalog?

No. CVE-2023-28853 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-28853?

CVE-2023-28853 has a CVSS v3 base score of 7.7 (HIGH).

What is the EPSS score for CVE-2023-28853?

CVE-2023-28853 has an EPSS score of 1.28% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-28853?

Upgrade mastodon to 4.1.2 or later.

CVE & CISA-KEV Catalog

CVE-2023-28853

HIGH

7.7

CVSS v3

NVD

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.

CWE-90 CWE-74Injection

How to fix

Remediation Available

mastodonNVD

Affected:>= 4.1.0, < 4.1.2Fixed in:4.1.2CVE-2023-28853derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.28%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Release Notes3

Product2

Other references1

openwall.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.