Vulnerability DatabaseCVE-2022-31157
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CVE-2022-31157
July 15, 2022
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.
Related Resources (6)
https://github.com/packbackbooks/lti-1-3-php-library
https://github.com/packbackbooks/lti-1-3-php-library/commit/de19e8a0b28cdc7750fa3ca98471eeed26ba3e57
https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31157.json
https://nvd.nist.gov/vuln/detail/CVE-2022-31157
https://openid.net/specs/openid-connect-core-1_0.html#IDToken
https://github.com/packbackbooks/lti-1-3-php-library/security/advisories/GHSA-768m-5w34-2xf5
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Use of Insufficiently Random Values
CWE-330
Use of a Broken or Risky Cryptographic Algorithm
CWE-327
EPSS
Base Score:
0.11