Path Traversal in Cam The University Of Cambridge Web Authentication System Apache Agent
CVE-2015-9287
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 to their advantage to force the application agent to load the RSA public key required for message integrity checking from an unintended location.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- doi.org/10.1007/978-3-030-03251-7_1 (Permissions Required, Third Party Advisory)
- github.com/grymer/CVE (Third Party Advisory)
Frequently asked questions
- What is CVE-2015-9287?
- CVE-2015-9287 is a critical-severity vulnerability in Cam The University Of Cambridge Web Authentication System Apache Agent, classified under Path Traversal. CVSS score: 9.8/10. Published 2019-05-13.
- How severe is CVE-2015-9287?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2015-9287 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.