SSRF in Shibboleth Xmltooling
CVE-2023-36661
Shibboleth XMLTooling before 3.2.4, as used in OpenSAML and Shibboleth Service Provider, allows SSRF via a crafted KeyInfo element. (This is fixed in, for example, Shibboleth Service Provider 3.4.1.3 on Windows.)
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Shibboleth Xmltooling
- Debian Linux — versions 11.0, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2023/dsa-5432 (vendor-advisory, Third Party Advisory)
- shibboleth.net/community/advisories/secadv_20230612.txt (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-36661?
- CVE-2023-36661 is a high-severity vulnerability in Shibboleth Xmltooling, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2023-06-25.
- How severe is CVE-2023-36661?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-36661 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.