Apache Struts 1 ActionForm Denial-of-Service Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-01-21
• EPSS: 55% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

ActionForm in Apache Software Foundation (ASF) Struts before 1.2.9 with BeanUtils 1.7 allows remote attackers to cause a denial of service via a multipart/form-data encoded form with a parameter name that references the public getMultipartRequestHandler method, which provides further access to elements in the CommonsMultipartRequestHandler implementation and BeanUtils.

CISA: ActionForm in Apache Struts versions before 1.2.9 with BeanUtils 1.7 contains a vulnerability that allows for denial-of-service (DoS).

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 21 Jul 2022): Apply updates per vendor instructions.

• Patch on struts.apache.orgVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• issues.apache.org/bugzilla/show_bug.cgiIssue TrackingPermissions Required
• lists.suse.com/archive/suse-security-announce/2006-May/0004.htmlBroken Link
• secunia.com/advisories/19493Broken Link
• secunia.com/advisories/20117Broken Link
• securitytracker.com/idBroken LinkThird Party AdvisoryVDB Entry
• struts.apache.org/struts-doc-1.2.9/userGuide/release-notes.htmlBroken LinkExploitPatch
• www.securityfocus.com/bid/17342Broken LinkThird Party AdvisoryVDB Entry
• www.vupen.com/english/advisories/2006/1205Broken Link
• exchange.xforce.ibmcloud.com/vulnerabilities/25613Third Party AdvisoryVDB Entry
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource