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Exploited vulnerability · CISA KEV

Is CVE-2020-2555 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Oracle Multiple Products · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-2555, Oracle Multiple Products Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 658 days after it was published. It affects Oracle Multiple Products. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.0 · critical
US federal due3 May 2022BOD 22-01 deadline

What it is

Multiple Oracle products contain a remote code execution vulnerability that allows an unauthenticated attacker with network access via T3 or HTTP to takeover the affected system. Impacted Oracle products: Oracle Coherence in Fusion Middleware, Oracle Utilities Framework, Oracle Retail Assortment Planning, Oracle Commerce, Oracle Communications Diameter Signaling Router (DSR).

VendorOracle (46 exploited CVEs in KEV)
ProductMultiple Products
VulnerabilityOracle Multiple Products Remote Code Execution Vulnerability
WeaknessCWE-502
Published15 Jan 2020
Added to KEV3 Nov 2021
Reported by (CNA)oracle

What to do

  1. Check whether you run it. Look for Multiple Products in your asset inventory, including appliances and cloud images. Stack check lists every exploited Oracle 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 15 Jan 2020.
  4. Get told next time. Email alerts when CISA adds a CVE for Oracle.

References

Questions

Is CVE-2020-2555 being exploited?

Yes. CISA added CVE-2020-2555 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-2555 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-2020-2555?

Apply updates per vendor instructions. Check Oracle's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Products 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 November 2021 · Oracle scorecard · act-now radar.

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