CVE-2021-31805

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://cwiki.apache.org/confluence/display/WW/S2-062	Mitigation Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/04/12/6	Mailing List Mitigation Third Party Advisory
https://security.netapp.com/advisory/ntap-20220420-0001/	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

Information

Published : 2022-04-12 09:15

Updated : 2022-07-25 11:15

NVD link : CVE-2021-31805

Mitre link : CVE-2021-31805

JSON object : View

CWE

CWE-917

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

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Products Affected

apache

struts

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