critical9.8
CVE-2021-31805
Expression Language Injection in Apache Struts
Impact
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.struts:struts2-core | >= 2.0.0, < 2.5.30 | 2.5.30 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Struts | from 2.0.0 through 2.5.29 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- http://www.openwall.com/lists/oss-security/2022/04/12/6
- https://cwiki.apache.org/confluence/display/WW/S2-062
- https://security.netapp.com/advisory/ntap-20220420-0001/
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://github.com/advisories/GHSA-v8j6-6c2r-r27c
- https://nvd.nist.gov/vuln/detail/CVE-2021-31805