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Exploited vulnerability · CISA KEV

Is CVE-2023-33246 exploited? Yes: in CISA KEV since 6 Sep 2023

Gociux · Apache RocketMQ · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-33246, Apache RocketMQ Command Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 6 Sep 2023, 105 days after it was published. It affects Apache RocketMQ. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 6 Sep 2023
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due27 Sep 2023BOD 22-01 deadline

What it is

Several components of Apache RocketMQ, including NameServer, Broker, and Controller, are exposed to the extranet and lack permission verification. An attacker can exploit this vulnerability by using the update configuration function to execute commands as the system users that RocketMQ is running as or achieve the same effect by forging the RocketMQ protocol content.

VendorApache (41 exploited CVEs in KEV)
ProductRocketMQ
VulnerabilityApache RocketMQ Command Execution Vulnerability
WeaknessCWE-94
Published24 May 2023
Added to KEV6 Sep 2023
Reported by (CNA)apache

What to do

  1. Check whether you run it. Look for RocketMQ in your asset inventory, including appliances and cloud images. Stack check lists every exploited Apache CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 24 May 2023.
  4. Get told next time. Email alerts when CISA adds a CVE for Apache.

References

Questions

Is CVE-2023-33246 being exploited?

Yes. CISA added CVE-2023-33246 to the Known Exploited Vulnerabilities catalog on 6 Sep 2023, which means there is reliable evidence of exploitation in the wild.

Is CVE-2023-33246 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2023-33246?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check Apache's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected RocketMQ and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in September 2023 · Apache scorecard · act-now radar.

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