Secunia Security Advisory - A security issue and a vulnerability have been reported in Apache Tomcat, which can be exploited by malicious, local users to bypass certain security restrictions or cause a DoS (Denial of Service).
ec8be9fad1a42c75766431de556bde958bcc7b1df0eb947bc27ced7dc317a221
----------------------------------------------------------------------
The Secunia Vulnerability Intelligence Manager (VIM) enables you to handle vulnerability threats in a simple, cost effective way.
Read more and request a free trial:
http://secunia.com/products/corporate/vim/
----------------------------------------------------------------------
TITLE:
Apache Tomcat sendfile Security Bypass and Denial of Service
SECUNIA ADVISORY ID:
SA45232
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45232/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45232
RELEASE DATE:
2011-07-15
DISCUSS ADVISORY:
http://secunia.com/advisories/45232/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/45232/
ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=45232
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION:
A security issue and a vulnerability have been reported in Apache
Tomcat, which can be exploited by malicious, local users to bypass
certain security restrictions or cause a DoS (Denial of Service).
1) The security issue is caused due to Apache Tomcat not properly
verifying sendfile request attributes when running under a security
manager, which can be exploited by a malicious web application to
bypass intended restrictions and e.g. disclose local files.
2) The vulnerability is caused due to Apache Tomcat not properly
handling sendfile request with invalid start and endpoints, which can
be exploited to crash the JVM.
Successful exploitation requires that a malicious web application is
deployed and a security manager and the HTTP NIO or HTTP APR
connector with enabled sendfile is used.
SOLUTION:
Update to versions 5.5.34, 6.0.33, or 7.0.19 when available. Also
fixed in the SVN repository and the vendor has also provided a
proposed patch for Apache Tomcat versions 5 and 6.
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
PROVIDED AND/OR DISCOVERED BY:
Tomcat Security Team
ORIGINAL ADVISORY:
http://tomcat.apache.org/security-5.html#To_be_fixed_in_Apache_Tomcat_5.5.34_(not_yet_released)
http://tomcat.apache.org/security-6.html#To_be_fixed_in_Apache_Tomcat_6.0.33_(not_yet_released)
http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.19_(not_yet_released)
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
----------------------------------------------------------------------
About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
----------------------------------------------------------------------