Vulnerability in Simplesamlphp
CVE-2019-3465
Rob Richards XmlSecLibs, all versions prior to v3.0.3, as used for example by SimpleSAMLphp, performed incorrect validation of cryptographic signatures in XML messages, allowing an authenticated attacker to impersonate others or elevate privileges by creating a crafted XML message.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: -0.000
Affected products
- Simplesamlphp
- Xmlseclibs Project
- Debian Linux — versions 8.0, 9.0, 10.0
- Rob Richards Xmlseclibs — versions All versions prior to version 3.0.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2019/11/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Nov/8 (mailing-list, Mailing List, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2019/dsa-4560 (vendor-advisory, Third Party Advisory)
- github.com/robrichards/xmlseclibs/commit/0a53d3c3aa87564910cae4ed01416441d3ae0d… (Patch)
- simplesamlphp.org/security/201911-01 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3465?
- CVE-2019-3465 is a high-severity vulnerability in Simplesamlphp, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.8/10. Published 2019-11-07.
- How severe is CVE-2019-3465?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-3465 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.