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Tomcat CVE-2015-5346

HIGH
2016-02-25 secalert@redhat.com
Apache Java Information Disclosure Debian Tomcat Canonical Debian Linux Ubuntu Linux
8.1
CVSS 3.0 · NVD
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Vulnerability Assessment

Impact

CVSS score of 8.1 (HIGH). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 36.17%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.
Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.
Patch available 36.2% exploitation probability (EPSS)

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AnalysisAI

Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Epss exploitation probability 36.2%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

maven org.apache.tomcat:tomcat fix: 7.0.66, 8.0.31, 9.0.0.M2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in maven

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Technical ContextAI · show details

Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leveraging use of a requestedSessionSSL field for an unintended request, related to CoyoteAdapter.java and Request.java. Affected products include: Apache Tomcat, Canonical Ubuntu Linux, Debian Debian Linux. Version information: before 7.0.66.

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Severity by source

NVD PRIMARY 8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Session fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2, when different session settings are used for deployments of multiple versions of the same web application, might allow remote attackers to hijack web sessions by leveraging use of a requestedSessionSSL field for an unintended request, related to CoyoteAdapter.java and Request.java.

Threat Intelligence Overview

EPSS Score
36.2%
Top 3% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 36.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

76
Low Medium High Critical
KEV: 0
EPSS: +36
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:apache:tomcat:7.0.0:beta:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.2:beta:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.4:beta:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.5:beta:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.10:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.11:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.12:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.14:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.16:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.19:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.20:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.21:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.22:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.23:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.25:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.26:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.27:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.28:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:7.0.29:*:*:*:*:*:*:*
+ 52 more

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References

Advisories & patches
ADVISORY http://tomcat.apache.org/security-7.html ADVISORY http://tomcat.apache.org/security-8.html ADVISORY http://tomcat.apache.org/security-9.html ADVISORY https://vuldb.com/vuln/81078 REF http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00047.html REF http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00069.html REF http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00085.html REF http://packetstormsecurity.com/files/135890/Apache-Tomcat-Session-Fixation.html REF http://rhn.redhat.com/errata/RHSA-2016-1089.html REF http://rhn.redhat.com/errata/RHSA-2016-2046.html REF http://rhn.redhat.com/errata/RHSA-2016-2807.html REF http://rhn.redhat.com/errata/RHSA-2016-2808.html REF http://seclists.org/bugtraq/2016/Feb/143 REF http://svn.apache.org/viewvc?view=revision&revision=1713184 REF http://svn.apache.org/viewvc?view=revision&revision=1713185 REF http://svn.apache.org/viewvc?view=revision&revision=1713187 REF http://svn.apache.org/viewvc?view=revision&revision=1723414 REF http://svn.apache.org/viewvc?view=revision&revision=1723506 REF http://www.debian.org/security/2016/dsa-3530 REF http://www.debian.org/security/2016/dsa-3552 REF http://www.debian.org/security/2016/dsa-3609 REF http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html REF http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html REF http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html REF http://www.securityfocus.com/bid/83323 REF http://www.securitytracker.com/id/1035069 REF http://www.ubuntu.com/usn/USN-3024-1 REF https://access.redhat.com/errata/RHSA-2016:1087 REF https://access.redhat.com/errata/RHSA-2016:1088 REF https://bto.bluecoat.com/security-advisory/sa118 REF https://bz.apache.org/bugzilla/show_bug.cgi?id=58809 REF https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150442 REF https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158626 REF https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E REF https://security.gentoo.org/glsa/201705-09 REF https://security.netapp.com/advisory/ntap-20180531-0001/

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