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CVE-2020-17530

Apache Struts Remote Code Execution

9.8 CRITICALActively exploited (CISA KEV)EPSS 95.9%
  1. Published11 Dec 2020
  2. Added to CISA KEV3 Nov 2021
  3. Remediation due3 May 2022
Actively exploited (CISA KEV)

Forced Object-Graph Navigation Language (OGNL) evaluation in Apache Struts, when evaluated on raw user input in tag attributes, can lead to remote code execution.

Added to KEV: 3 Nov 2021Federal remediation due: 3 May 2022

Description

Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Struts≥ 2.0.0 < 2.5.30
Oracle Business Intelligence12.2.1.3.0 · 12.2.1.4.0
Oracle Communications Diameter Intelligence Hub8.0.0 · 8.1.0 · 8.2.0 · 8.2.3
Oracle Communications Policy Management12.5.0
Oracle Communications Pricing Design Center12.0.0.3.0
Oracle Financial Services Data Integration Hub8.0.3 · 8.0.6
Oracle Hospitality Opera 55.6
Oracle Mysql Enterprise Monitor8.0.23

Remediation

Fixed in
Apache Struts≥ 2.5.30

References

and 2 more references

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Frequently asked

Is CVE-2020-17530 being actively exploited?

Yes. CVE-2020-17530 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2020-17530?

CVE-2020-17530 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 95.9% probability of exploitation.

Which products are affected by CVE-2020-17530?

Affected products include Apache Struts, Oracle Business Intelligence, Oracle Communications Diameter Intelligence Hub, Oracle Communications Policy Management, Oracle Communications Pricing Design Center, and 3 more.

How do I fix CVE-2020-17530?

Upgrade affected software to a fixed version, for example Apache Struts 2.5.30 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-17530 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.