CVE-2015-9287: Directory Traversal was discovered in University of Cambridge mod_ucam_webauth before 2.0.2

Q: Is CVE-2015-9287 being exploited?

CVE-2015-9287 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-9287 affect?

CVE-2015-9287 affects the university of cambridge web authentication system apache authentication agent. Severity is critical (CVSS 9.8). Directory Traversal was discovered in University of Cambridge mod_ucam_webauth before 2.0.2. The key identification field ("kid") of the IdP's HTTP response message ("WLS-Response") can be manipulated by an attacker. The "kid" field is not

Q: How urgent is CVE-2015-9287?

Priority 64/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2015-9287 is a critical-severity flaw (CVSS 9.8) affecting the university of cambridge web authentication system apache authentication agent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory Traversal was discovered in University of Cambridge mod_ucam_webauth before 2.0.2. The key identification field ("kid") of the IdP's HTTP response message ("WLS-Response") can be manipulated by an attacker. The "kid" field is not signed like the rest of the message, and manipulation is therefore trivial. The "kid" field should only ever represent an integer. However, it is possible to provide any string value. An attacker could use this

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-05-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cam

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-05-13 16:29 UTCPublished CVE record published
2026-06-17 00:36 UTCUpdated Record last modified

cam the university of cambridge web authentication system apache authentication agent UPGRADE

Affected: < 2.0.2

Fixed in: 2.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy the-university-of-cambridge-web-authentication-system-apache-authentication-agent || rpm -q the-university-of-cambridge-web-authentication-system-apache-authentication-agent || the-university-of-cambridge-web-authentication-system-apache-authentication-agent --version

2. UPGRADE to 2.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade the-university-of-cambridge-web-authentication-system-apache-authentication-agent

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade the-university-of-cambridge-web-authentication-system-apache-authentication-agent

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-9287?

the university of cambridge web authentication system apache authentication agent: upgrade to 2.0.2. Exact commands for each OS are on this page.

Is CVE-2015-9287 being exploited?

CVE-2015-9287 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-9287 affect?

CVE-2015-9287 affects the university of cambridge web authentication system apache authentication agent. Severity is critical (CVSS 9.8). Directory Traversal was discovered in University of Cambridge mod_ucam_webauth before 2.0.2. The key identification field ("kid") of the IdP's HTTP response message ("WLS-Response") can be manipulated by an attacker. The "kid" field is not

How urgent is CVE-2015-9287?

Priority 64/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

References

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