CVE-2007-4556

Impact

Struts support in OpenSymphony XWork before 1.2.3, and 2.x before 2.0.4, as used in WebWork and Apache Struts, recursively evaluates all input as an Object-Graph Navigation Language (OGNL) expression when altSyntax is enabled, which allows remote attackers to cause a denial of service (infinite loop) or execute arbitrary code via form input beginning with a "%{" sequence and ending with a "}" character.

Affected products

References

• NVD record
• CVE.org record
• http://forums.opensymphony.com/ann.jspa?annID=54
• http://issues.apache.org/struts/browse/WW-2030
• http://jira.opensymphony.com/browse/XW-544
• http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701
• http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706
• http://osvdb.org/37072
• http://secunia.com/advisories/26681
• http://secunia.com/advisories/26693
• http://secunia.com/advisories/26694
• http://struts.apache.org/2.x/docs/s2-001.html
• http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release
• http://www.securityfocus.com/bid/25524
• http://www.vupen.com/english/advisories/2007/3041
• http://www.vupen.com/english/advisories/2007/3042
• http://forums.opensymphony.com/ann.jspa?annID=54
• http://issues.apache.org/struts/browse/WW-2030
• http://jira.opensymphony.com/browse/XW-544
• http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701
• http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706
• http://osvdb.org/37072
• http://secunia.com/advisories/26681
• http://secunia.com/advisories/26693
• http://secunia.com/advisories/26694
• http://struts.apache.org/2.x/docs/s2-001.html
• http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release