Vulnerability Details : CVE-2020-36255
An issue was discovered in IdentityModel (aka ScottBrady.IdentityModel) before 1.3.0. The Branca implementation allows an attacker to modify and forge authentication tokens.
Products affected by CVE-2020-36255
- cpe:2.3:a:identitymodel_project:identitymodel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-36255
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-36255
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
References for CVE-2020-36255
-
https://github.com/scottbrady91/IdentityModel/issues/3
Poly1305 key misuse - attackers can forge authenticated tokens · Issue #3 · scottbrady91/IdentityModel · GitHubBroken Link;Issue Tracking;Third Party Advisory
-
https://github.com/scottbrady91/IdentityModel/issues/4
Unauthenticated ciphertext - attackers can modify tokens · Issue #4 · scottbrady91/IdentityModel · GitHubBroken Link;Issue Tracking;Third Party Advisory
-
https://github.com/scottbrady91/IdentityModel/compare/1.2.0...1.3.0
Comparing 1.2.0...1.3.0 · scottbrady91/IdentityModel · GitHubPatch;Release Notes;Third Party Advisory
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