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CVE-2023-46604: Apache ActiveMQ Deserialization of Untrusted Data Vulnerability

criticalknown exploitedpublic exploitCVE-2023-46604
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apache ActiveMQ contains a deserialization of untrusted data vulnerability that may allow a remote attacker with network access to a broker to run shell commands by manipulating serialized class types in the OpenWire protocol to cause the broker to instantiate any class on the classpath.

CSIRTS triage

vendor: Apacheproduct: ActiveMQUnsafe deserializationOther
What
The vulnerability may allow a remote attacker to run shell commands by manipulating serialized class types.
Who is affected
Deployments of Apache ActiveMQ.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch provided by Apache.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-11-02
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-46604

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-46604coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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