Vulnerability in Packback Lti 1.3 Tool Library
CVE-2022-31157
LTI 1.3 Tool Library is a library used for building IMS-certified LTI 1.3 tool providers in PHP. Prior to version 5.0, the function used to generate random nonces was not sufficiently cryptographically complex. Users should upgrade to version 5.0 to receive a patch. There are currently no known workarounds.
Vulnerability class: POODLE (CVE-2014-3566)
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:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Packback Lti 1.3 Tool Library
- Packbackbooks Lti-1-3-Php-Library — versions < 5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/packbackbooks/lti-1-3-php-library/security/advisories/GHSA-768m-5w34… (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31157?
- CVE-2022-31157 is a high-severity vulnerability in Packback Lti 1.3 Tool Library, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2022-07-15.
- How severe is CVE-2022-31157?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-31157 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.