Apache Struts 1 ActionForm Denial-of-Service Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 21/01/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| struts:struts | < 1.2.9 | 1.2.9 |
| struts | < 1.2.9 | 1.2.9 |
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.
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