Known exploited vulnerability

CVE-2017-9791

criticalCVSS 3.1 9.8In CISA KEVEPSS 99%Published · Apache Software Foundation

The short answer

CVE-2017-9791 affects Apache Software Foundation Apache Struts and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-02-10: attackers are using it, so patch it first.

What it is

The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.

Weakness: CWE-20.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Feb 10, 2022

Federal due date Aug 10, 2022

EPSS, next 30 days

99%

Higher than 100% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected packages and fixed versions

PackageEcosystemFixed inAdvisory
org.apache.struts:struts2-struts1-pluginMavenNo fix yetGHSA-29rm-6752-gvwv

Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.

Affected products

Apache Struts. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2017-9791 being exploited?

Yes. CISA added CVE-2017-9791 to its Known Exploited Vulnerabilities catalog on 2022-02-10, with a federal remediation due date of 2022-08-10.

How do I fix CVE-2017-9791?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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