9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.95 High
EPSS
Percentile
99.3%
Regular expression in ParametersInterceptor matches top['foo'](0)
as a valid expression, which OGNL treats as (top['foo'])(0)
and evaluates the value of ‘foo’ action parameter as an OGNL expression. This lets malicious users put arbitrary OGNL statements into any String variable exposed by an action and have it evaluated as an OGNL expression and since OGNL statement is in HTTP parameter value attacker can use blacklisted characters (e.g. #) to disable method execution and execute arbitrary methods, bypassing the ParametersInterceptor and OGNL library protections.
CPE | Name | Operator | Version |
---|---|---|---|
org.apache.struts:struts2-core | lt | 2.3.1.2 |
blog.o0o.nu/2012/01/cve-2011-3923-yet-another-struts2.html
struts.apache.org/development/2.x/docs/s2-009.html
bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3923
exchange.xforce.ibmcloud.com/vulnerabilities/72585
github.com/advisories/GHSA-j68f-8h6p-9h5q
nvd.nist.gov/vuln/detail/CVE-2011-3923
security-tracker.debian.org/tracker/CVE-2011-3923
web.archive.org/web/20140725074137/seclists.org/fulldisclosure/2014/Jul/38
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.95 High
EPSS
Percentile
99.3%