Home/CVE/Apache ActiveMQ Deserialization of Untrusted Data Vulnerability
CVE

CVE-2023-46604

Apache ActiveMQ Deserialization of Untrusted Data Vulnerability

The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenWire protocol to cause either the client or the broker (respectively) to instantiate any class on the classpath. Users are recommended to upgrade both brokers and clients to version 5.15.16, 5.16.7, 5.17.6, or 5.18.3 which fixes this issue.

CRITICAL · CVSS 10 ⚠ CISA KEV EPSS 0.94436 Ransomware: known
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • Linked to known ransomware campaigns
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules10 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

◆

Threat Actors Linked

8
actorAndariel
actorBrain Cipher
actorCicada3301
actorDragonForce
actorEarth Krahang
actorFlax Typhoon
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

12
apache activemq< 5.15.16
apache activemq>= 5.16.0 and < 5.16.7
apache activemq>= 5.17.0 and < 5.17.6
apache activemq>= 5.18.0 and < 5.18.3
apache activemq legacy openwire module< 5.15.16
apache activemq legacy openwire module>= 5.16.0 and < 5.16.7
apache activemq legacy openwire module>= 5.17.0 and < 5.17.6
apache activemq legacy openwire module>= 5.18.0 and < 5.18.3
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.apache.activemq:activemq-client CRITICAL fixed in 5.15.16
Maven org.apache.activemq:activemq-openwire-legacy CRITICAL fixed in 5.15.16
⚠

Public Exploits & PoCs

2
nucleiApache ActiveMQ - Remote Code Executioncritical
pocpacketstormsecurity.com · Apache-ActiveMQ-Unauthenticated-Remote-Code-Execution.htmlpacketstormsecurity.com
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Detection Rules (IDS/IPS)

5
et-openET INFO Apache ActiveMQ Instance - Vulnerable to CVE-2023-46604 - Remote Instancemisc-activity
et-openET INFO Apache ActiveMQ Instance - Vulnerable to CVE-2023-46604 - Local Instancemisc-activity
et-openET EXPLOIT Successful Apache ActiveMQ Remote Code Execution (CVE-2023-46604)successful-admin
et-openET EXPLOIT Apache ActiveMQ Remote Code Execution Attempt (CVE-2023-46604)attempted-admin
et-openET INFO Remote Spring Application XML Configuration Containing ProcessBuilder Downloadedmisc-activity
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

10
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
relatedcriticalBitbucket Unauthorized Full Data Export Triggered
relatedcriticalBitbucket Unauthorized Access To A Resource
relatedcriticalAntivirus Exploitation Framework Detection
relatedcriticalAntivirus Password Dumper Detection
relatedcriticalAntivirus Ransomware Detection
relatedcriticalWebshell Remote Command Execution
▣

Scoring & Timeline

10
CRITICAL · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Oct 2023 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

13
usnUSN-7268-1
siemens-csafSSA-246355
usnUSN-6910-1
rhsaRHSA-2023:7247Critical
rhsaRHSA-2023:6878Critical
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2024/Apr/18Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/11/msg00013.htmlMailing List
https://security.netapp.com/advisory/ntap-20231110-0010/Third Party Advisory
https://www.openwall.com/lists/oss-security/2023/10/27/5Mailing List
https://lists.debian.org/debian-lts-announce/2024/10/msg00027.htmlMailing List
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46604Third Party AdvisoryUS Government Resource
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