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Exploited vulnerability · CISA KEV

Is CVE-2017-15944 exploited? Yes: in CISA KEV since 18 Aug 2022

Gociux · Palo Alto Networks PAN-OS · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-15944, Palo Alto Networks PAN-OS Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 18 Aug 2022, 1711 days after it was published. It affects Palo Alto Networks PAN-OS, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 18 Aug 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due8 Sep 2022BOD 22-01 deadline

What it is

Palo Alto Networks PAN-OS contains multiple, unspecified vulnerabilities which can allow for remote code execution when chained.

VendorPalo Alto Networks (16 exploited CVEs in KEV)
ProductPAN-OS
VulnerabilityPalo Alto Networks PAN-OS Remote Code Execution Vulnerability
Weaknessnot specified
Published11 Dec 2017
Added to KEV18 Aug 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for PAN-OS in your asset inventory, including appliances and cloud images. Stack check lists every exploited Palo Alto Networks CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  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 11 Dec 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for Palo Alto Networks.

Other exploited CVEs in PAN-OS

References

Questions

Is CVE-2017-15944 being exploited?

Yes. CISA added CVE-2017-15944 to the Known Exploited Vulnerabilities catalog on 18 Aug 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-15944 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-2017-15944?

Apply updates per vendor instructions. Check Palo Alto Networks's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected PAN-OS 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 August 2022 · Palo Alto Networks scorecard · act-now radar.

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