The Tomcat 6 DIGEST authentication functionality as used in Red Hat Enterprise Linux 6 allows remote attackers to bypass intended access restrictions by performing a replay attack after a nonce becomes stale. NOTE: this issue is due to an incomplete fix for CVE-2012-5887.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-0869 advisory.

    - Related: rhbz#955976 CVE-2013-1976. Changed log location
    - Resolves: rhbz#956771 Related: CVE-2012-3439 digest
    - Resolves: rhbz#955976 CVE-2013-1976 improper TOMCAT_LOG

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated tomcat6 packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

A flaw was found in the way the tomcat6 init script handled the tomcat6-initd.log log file. A malicious web application deployed on Tomcat could use this flaw to perform a symbolic link attack to change the ownership of an arbitrary system file to that of the tomcat user, allowing them to escalate their privileges to root. (CVE-2013-1976)

Note: With this update, tomcat6-initd.log has been moved from /var/log/tomcat6/ to the /var/log/ directory.

It was found that the RHSA-2013:0623 update did not correctly fix CVE-2012-5887, a weakness in the Tomcat DIGEST authentication implementation. A remote attacker could use this flaw to perform replay attacks in some circumstances. Additionally, this problem also prevented users from being able to authenticate using DIGEST authentication. (CVE-2013-2051)

Red Hat would like to thank Simon Fayer of Imperial College London for reporting the CVE-2013-1976 issue.

Users of Tomcat are advised to upgrade to these updated packages, which correct these issues. Tomcat must be restarted for this update to take effect.

A flaw was found in the way the tomcat6 init script handled the tomcat6-initd.log log file. A malicious web application deployed on Tomcat could use this flaw to perform a symbolic link attack to change the ownership of an arbitrary system file to that of the tomcat user, allowing them to escalate their privileges to root. (CVE-2013-1976)

Note: With this update, tomcat6-initd.log has been moved from /var/log/tomcat6/ to the /var/log/ directory.

It was found that the SLSA-2013:0623 update did not correctly fix CVE-2012-5887, a weakness in the Tomcat DIGEST authentication implementation. A remote attacker could use this flaw to perform replay attacks in some circumstances. Additionally, this problem also prevented users from being able to authenticate using DIGEST authentication. (CVE-2013-2051)

Tomcat must be restarted for this update to take effect.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:0869 advisory.

    Apache Tomcat is a servlet container for the Java Servlet and JavaServer     Pages (JSP) technologies.

    A flaw was found in the way the tomcat6 init script handled the     tomcat6-initd.log log file. A malicious web application deployed on Tomcat     could use this flaw to perform a symbolic link attack to change the     ownership of an arbitrary system file to that of the tomcat user, allowing     them to escalate their privileges to root. (CVE-2013-1976)

    Note: With this update, tomcat6-initd.log has been moved from     /var/log/tomcat6/ to the /var/log/ directory.

    It was found that the RHSA-2013:0623 update did not correctly fix     CVE-2012-5887, a weakness in the Tomcat DIGEST authentication     implementation. A remote attacker could use this flaw to perform replay     attacks in some circumstances. Additionally, this problem also prevented     users from being able to authenticate using DIGEST authentication.
    (CVE-2013-2051)

    Red Hat would like to thank Simon Fayer of Imperial College London for     reporting the CVE-2013-1976 issue.

    Users of Tomcat are advised to upgrade to these updated packages, which     correct these issues. Tomcat must be restarted for this update to take     effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
68827	Oracle Linux 6 : tomcat6 (ELSA-2013-0869)	Nessus	Oracle Linux Local Security Checks	critical
66674	CentOS 6 : tomcat6 (CESA-2013:0869)	Nessus	CentOS Local Security Checks	medium
66665	Scientific Linux Security Update : tomcat6 on SL6.x (noarch) (20130528)	Nessus	Scientific Linux Local Security Checks	medium
66660	RHEL 6 : tomcat6 (RHSA-2013:0869)	Nessus	Red Hat Local Security Checks	critical

Detections

Analytics

CVE-2013-2051

critical

Tenable Plugins

critical

medium

medium

critical