Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
CVE Vulnerability Details :
CVE-2021-31805
PUBLISHED
More InfoOfficial Page
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
View Known Exploited Vulnerability (KEV) details
Published At-12 Apr, 2022 | 15:25
Updated At-03 Aug, 2024 | 23:10
Rejected At-
▼CVE Numbering Authority (CNA)
Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE.

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 Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Struts
Versions
Affected
  • 2.0.0 to 2.5.29
Problem Types
TypeCWE IDDescription
CWECWE-917CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Type: CWE
CWE ID: CWE-917
Description: CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds

Avoid using forced OGNL evaluation on untrusted user input, and/or upgrade to Struts 2.5.30 which checks if expression evaluation won’t lead to the double evaluation. Please read our Security Bulletin S2-062 for more details.

Exploits
Credits
Apache Struts would like to thank Chris McCown for reporting this issue!
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cwiki.apache.org/confluence/display/WW/S2-062
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/04/12/6
mailing-list
x_refsource_MLIST
https://www.oracle.com/security-alerts/cpujul2022.html
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220420-0001/
x_refsource_CONFIRM
Hyperlink: https://cwiki.apache.org/confluence/display/WW/S2-062
Resource:
x_refsource_MISC
Hyperlink: http://www.openwall.com/lists/oss-security/2022/04/12/6
Resource:
mailing-list
x_refsource_MLIST
Hyperlink: https://www.oracle.com/security-alerts/cpujul2022.html
Resource:
x_refsource_MISC
Hyperlink: https://security.netapp.com/advisory/ntap-20220420-0001/
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cwiki.apache.org/confluence/display/WW/S2-062
x_refsource_MISC
x_transferred
http://www.openwall.com/lists/oss-security/2022/04/12/6
mailing-list
x_refsource_MLIST
x_transferred
https://www.oracle.com/security-alerts/cpujul2022.html
x_refsource_MISC
x_transferred
https://security.netapp.com/advisory/ntap-20220420-0001/
x_refsource_CONFIRM
x_transferred
Hyperlink: https://cwiki.apache.org/confluence/display/WW/S2-062
Resource:
x_refsource_MISC
x_transferred
Hyperlink: http://www.openwall.com/lists/oss-security/2022/04/12/6
Resource:
mailing-list
x_refsource_MLIST
x_transferred
Hyperlink: https://www.oracle.com/security-alerts/cpujul2022.html
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://security.netapp.com/advisory/ntap-20220420-0001/
Resource:
x_refsource_CONFIRM
x_transferred
Details not found