Multiple vulnerabilities in Apache Tomcat

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU64536

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-5885

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass intended access restrictions.

The vulnerability exists due to replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values. A remote attacker can bypass intended access restrictions by sniffing the network for valid requests

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Tomcat: 5.5 - 7.0.29

External links

http://lists.opensuse.org/opensuse-updates/2012-12/msg00089.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00090.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00037.html
http://marc.info/?l=bugtraq&m=136485229118404&w=2
http://marc.info/?l=bugtraq&m=136612293908376&w=2
http://rhn.redhat.com/errata/RHSA-2013-0623.html
http://rhn.redhat.com/errata/RHSA-2013-0629.html
http://rhn.redhat.com/errata/RHSA-2013-0631.html
http://rhn.redhat.com/errata/RHSA-2013-0632.html
http://rhn.redhat.com/errata/RHSA-2013-0633.html
http://rhn.redhat.com/errata/RHSA-2013-0640.html
http://rhn.redhat.com/errata/RHSA-2013-0647.html
http://rhn.redhat.com/errata/RHSA-2013-0648.html
http://rhn.redhat.com/errata/RHSA-2013-0726.html
http://secunia.com/advisories/51371
http://svn.apache.org/viewvc?view=revision&revision=1377807
http://svn.apache.org/viewvc?view=revision&revision=1380829
http://svn.apache.org/viewvc?view=revision&revision=1392248
http://tomcat.apache.org/security-5.html
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-7.html
http://www.securityfocus.com/bid/56403
http://www.ubuntu.com/usn/USN-1637-1
http://www-01.ibm.com/support/docview.wss?uid=swg21626891
http://exchange.xforce.ibmcloud.com/vulnerabilities/80408
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19432

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU64510

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-3544

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack by streaming data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Tomcat: 6.0.0 - 7.0.29

External links

http://archives.neohapsis.com/archives/bugtraq/2013-05/0042.html
http://seclists.org/fulldisclosure/2014/Dec/23
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/filters/ChunkedInputFilter.java?r1=1476592&r2=1476591&pathrev=1476592
http://svn.apache.org/viewvc?view=revision&revision=1378702
http://svn.apache.org/viewvc?view=revision&revision=1378921
http://svn.apache.org/viewvc?view=revision&revision=1476592
http://tomcat.apache.org/security-6.html
http://tomcat.apache.org/security-7.html
http://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
http://www.securityfocus.com/archive/1/534161/100/0/threaded
http://www.securityfocus.com/bid/59797
http://www.securityfocus.com/bid/64758
http://www.ubuntu.com/usn/USN-1841-1
http://www.vmware.com/security/advisories/VMSA-2014-0012.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.