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Vulnerability Details : CVE-2011-2526

Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.19, when sendfile is enabled for the HTTP APR or HTTP NIO connector, does not validate certain request attributes, which allows local users to bypass intended file access restrictions or cause a denial of service (infinite loop or JVM crash) by leveraging an untrusted web application.
Publish Date : 2011-07-14 Last Update Date : 2014-03-16
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- CVSS Scores & Vulnerability Types

CVSS Score
4.4
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceBypass a restriction or similar
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
2.6
AV:L/AC:H/Au:N/C:P/I:N/A:P 2011-07-12 2011-07-13
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-2526 oval:org.opensuse.security:def:20112526 unix
ELSA-2011:1780: tomcat6 security and bug fix update (Moderate) oval:org.mitre.oval:def:23257 unix
HP-UX Apache Running Tomcat Servlet Engine, Remote Denial of Service (DoS), Access Restriction Bypass, Unauthorized Mod... oval:org.mitre.oval:def:19514 unix
HP-UX Apache Running Tomcat Servlet Engine, Remote Information Disclosure, Authentication Bypass, Cross-Site Scripting (... oval:org.mitre.oval:def:14573 unix
RHSA-2011:1780: tomcat6 security and bug fix update (Moderate) oval:org.mitre.oval:def:22153 unix
RHSA-2011:1780: tomcat6 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20111780 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-2526

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Tomcat 5.5.0 Version Details Vulnerabilities
2 Application Apache Tomcat 5.5.1 Version Details Vulnerabilities
3 Application Apache Tomcat 5.5.2 Version Details Vulnerabilities
4 Application Apache Tomcat 5.5.3 Version Details Vulnerabilities
5 Application Apache Tomcat 5.5.4 Version Details Vulnerabilities
6 Application Apache Tomcat 5.5.5 Version Details Vulnerabilities
7 Application Apache Tomcat 5.5.6 Version Details Vulnerabilities
8 Application Apache Tomcat 5.5.7 Version Details Vulnerabilities
9 Application Apache Tomcat 5.5.8 Version Details Vulnerabilities
10 Application Apache Tomcat 5.5.9 Version Details Vulnerabilities
11 Application Apache Tomcat 5.5.10 Version Details Vulnerabilities
12 Application Apache Tomcat 5.5.11 Version Details Vulnerabilities
13 Application Apache Tomcat 5.5.12 Version Details Vulnerabilities
14 Application Apache Tomcat 5.5.13 Version Details Vulnerabilities
15 Application Apache Tomcat 5.5.14 Version Details Vulnerabilities
16 Application Apache Tomcat 5.5.15 Version Details Vulnerabilities
17 Application Apache Tomcat 5.5.16 Version Details Vulnerabilities
18 Application Apache Tomcat 5.5.17 Version Details Vulnerabilities
19 Application Apache Tomcat 5.5.18 Version Details Vulnerabilities
20 Application Apache Tomcat 5.5.19 Version Details Vulnerabilities
21 Application Apache Tomcat 5.5.20 Version Details Vulnerabilities
22 Application Apache Tomcat 5.5.21 Version Details Vulnerabilities
23 Application Apache Tomcat 5.5.22 Version Details Vulnerabilities
24 Application Apache Tomcat 5.5.23 Version Details Vulnerabilities
25 Application Apache Tomcat 5.5.24 Version Details Vulnerabilities
26 Application Apache Tomcat 5.5.25 Version Details Vulnerabilities
27 Application Apache Tomcat 5.5.26 Version Details Vulnerabilities
28 Application Apache Tomcat 5.5.27 Version Details Vulnerabilities
29 Application Apache Tomcat 5.5.28 Version Details Vulnerabilities
30 Application Apache Tomcat 5.5.29 Version Details Vulnerabilities
31 Application Apache Tomcat 5.5.30 Version Details Vulnerabilities
32 Application Apache Tomcat 5.5.31 Version Details Vulnerabilities
33 Application Apache Tomcat 5.5.32 Version Details Vulnerabilities
34 Application Apache Tomcat 5.5.33 Version Details Vulnerabilities
35 Application Apache Tomcat 6.0 Version Details Vulnerabilities
36 Application Apache Tomcat 6.0.0 Version Details Vulnerabilities
37 Application Apache Tomcat 6.0.1 Version Details Vulnerabilities
38 Application Apache Tomcat 6.0.2 Version Details Vulnerabilities
39 Application Apache Tomcat 6.0.3 Version Details Vulnerabilities
40 Application Apache Tomcat 6.0.4 Version Details Vulnerabilities
41 Application Apache Tomcat 6.0.5 Version Details Vulnerabilities
42 Application Apache Tomcat 6.0.6 Version Details Vulnerabilities
43 Application Apache Tomcat 6.0.7 Version Details Vulnerabilities
44 Application Apache Tomcat 6.0.8 Version Details Vulnerabilities
45 Application Apache Tomcat 6.0.9 Version Details Vulnerabilities
46 Application Apache Tomcat 6.0.10 Version Details Vulnerabilities
47 Application Apache Tomcat 6.0.11 Version Details Vulnerabilities
48 Application Apache Tomcat 6.0.12 Version Details Vulnerabilities
49 Application Apache Tomcat 6.0.13 Version Details Vulnerabilities
50 Application Apache Tomcat 6.0.14 Version Details Vulnerabilities
51 Application Apache Tomcat 6.0.15 Version Details Vulnerabilities
52 Application Apache Tomcat 6.0.16 Version Details Vulnerabilities
53 Application Apache Tomcat 6.0.17 Version Details Vulnerabilities
54 Application Apache Tomcat 6.0.18 Version Details Vulnerabilities
55 Application Apache Tomcat 6.0.19 Version Details Vulnerabilities
56 Application Apache Tomcat 6.0.20 Version Details Vulnerabilities
57 Application Apache Tomcat 6.0.24 Version Details Vulnerabilities
58 Application Apache Tomcat 6.0.26 Version Details Vulnerabilities
59 Application Apache Tomcat 6.0.27 Version Details Vulnerabilities
60 Application Apache Tomcat 6.0.28 Version Details Vulnerabilities
61 Application Apache Tomcat 6.0.29 Version Details Vulnerabilities
62 Application Apache Tomcat 6.0.30 Version Details Vulnerabilities
63 Application Apache Tomcat 6.0.31 Version Details Vulnerabilities
64 Application Apache Tomcat 6.0.32 Version Details Vulnerabilities
65 Application Apache Tomcat 7.0.0 Version Details Vulnerabilities
66 Application Apache Tomcat 7.0.0 Beta Version Details Vulnerabilities
67 Application Apache Tomcat 7.0.1 Version Details Vulnerabilities
68 Application Apache Tomcat 7.0.2 Version Details Vulnerabilities
69 Application Apache Tomcat 7.0.3 Version Details Vulnerabilities
70 Application Apache Tomcat 7.0.4 Version Details Vulnerabilities
71 Application Apache Tomcat 7.0.5 Version Details Vulnerabilities
72 Application Apache Tomcat 7.0.6 Version Details Vulnerabilities
73 Application Apache Tomcat 7.0.7 Version Details Vulnerabilities
74 Application Apache Tomcat 7.0.8 Version Details Vulnerabilities
75 Application Apache Tomcat 7.0.9 Version Details Vulnerabilities
76 Application Apache Tomcat 7.0.10 Version Details Vulnerabilities
77 Application Apache Tomcat 7.0.11 Version Details Vulnerabilities
78 Application Apache Tomcat 7.0.12 Version Details Vulnerabilities
79 Application Apache Tomcat 7.0.14 Version Details Vulnerabilities
80 Application Apache Tomcat 7.0.17 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Tomcat 80

- References For CVE-2011-2526

https://bugzilla.redhat.com/show_bug.cgi?id=720948 CONFIRM
http://svn.apache.org/viewvc?view=revision&revision=1146005 CONFIRM
http://tomcat.apache.org/security-5.html CONFIRM
http://marc.info/?l=bugtraq&m=132215163318824&w=2
HP SSRT100627
http://osvdb.org/73797
OSVDB 73797
http://marc.info/?l=bugtraq&m=139344343412337&w=2
HP HPSBST02955
http://osvdb.org/73798
OSVDB 73798
http://www.debian.org/security/2012/dsa-2401
DEBIAN DSA-2401
http://marc.info/?l=bugtraq&m=136485229118404&w=2
HP HPSBUX02860
http://www.securityfocus.com/bid/48667
BID 48667 Apache Tomcat 'sendfile' Request Attributes Information Disclosure Vulnerability Release Date:2014-02-27
http://rhn.redhat.com/errata/RHSA-2012-0325.html
REDHAT RHSA-2012:0325
http://rhn.redhat.com/errata/RHSA-2012-0078.html
REDHAT RHSA-2012:0078
http://rhn.redhat.com/errata/RHSA-2012-0076.html
REDHAT RHSA-2012:0076
http://rhn.redhat.com/errata/RHSA-2012-0075.html
REDHAT RHSA-2012:0075
http://rhn.redhat.com/errata/RHSA-2012-0077.html
REDHAT RHSA-2012:0077
http://tomcat.apache.org/security-6.html CONFIRM
http://tomcat.apache.org/security-7.html CONFIRM
http://secunia.com/advisories/45232
SECUNIA 45232
http://www.mandriva.com/security/advisories?name=MDVSA-2011:156
MANDRIVA MDVSA-2011:156
http://rhn.redhat.com/errata/RHSA-2012-0074.html
REDHAT RHSA-2012:0074
http://www.securityfocus.com/archive/1/archive/1/518889/100/0/threaded
BUGTRAQ 20110713 [SECURITY] CVE-2011-2526 Apache Tomcat Information disclosure and availability vulnerabilities
http://xforce.iss.net/xforce/xfdb/68541
XF tomcat-sendfile-info-disclosure(68541)
http://svn.apache.org/viewvc?view=revision&revision=1145383 CONFIRM
http://svn.apache.org/viewvc?view=revision&revision=1145694 CONFIRM
http://secunia.com/advisories/57126
SECUNIA 57126
http://svn.apache.org/viewvc?view=revision&revision=1145571 CONFIRM
http://www.securitytracker.com/id?1025788
SECTRACK 1025788

- Metasploit Modules Related To CVE-2011-2526

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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