HOMEVULNERABILITIESCVE-2014-4172
CRITICAL

CVE-2014-4172

CWE-74Published: January 24, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service parameter to validation/AbstractUrlBasedTicketValidator.java or (2) pgtUrl parameter to validation/Cas20ServiceTicketValidator.java.

NVD Source

Technical Analysis

CVE-2014-4172 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

apereo3 product(s)
.net cas clientjava cas clientphpcas
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d
PATCHhttps://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814
PATCHhttps://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d
PATCHhttps://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814
ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html
ADVISORYhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1131350
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/95673
ADVISORYhttps://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog
ADVISORYhttps://github.com/Jasig/phpCAS/pull/125
ADVISORYhttps://issues.jasig.org/browse/CASC-228
ADVISORYhttps://www.debian.org/security/2014/dsa-3017.en.html
ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html
ADVISORYhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1131350
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/95673
ADVISORYhttps://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog
ADVISORYhttps://github.com/Jasig/phpCAS/pull/125
ADVISORYhttps://issues.jasig.org/browse/CASC-228
ADVISORYhttps://www.debian.org/security/2014/dsa-3017.en.html

All References (22)

→
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.htmlThird Party Advisory
→
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1131350Issue Tracking · Third Party Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/95673Third Party Advisory · VDB Entry
→
https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8dPatch · Third Party Advisory
→
https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814Patch · Third Party Advisory
→
https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLogRelease Notes · Third Party Advisory
→
https://github.com/Jasig/phpCAS/pull/125Third Party Advisory
→
https://issues.jasig.org/browse/CASC-228Third Party Advisory
→
https://www.debian.org/security/2014/dsa-3017.en.htmlThird Party Advisory
→
https://www.mail-archive.com/cas-user%40lists.jasig.org/msg17338.html
→
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.htmlThird Party Advisory
→
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1131350Issue Tracking · Third Party Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/95673Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2014-4172
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-74
CISA KEVNo
Affected3 vendor(s)
PublishedJan 24, 2020

Related CVEs (CWE-74)

CVE-2020-26282
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CVE-2024-38366
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CVE-2023-1523
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CVE-2022-24760
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CVE-2024-42472
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CVE-2023-30547
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-4172 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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