Vulnerability CVE-2021-29451
Published: 2021-04-16   Modified: 2021-04-17

Description:
Portofino is an open source web development framework. Portofino before version 5.2.1 did not properly verify the signature of JSON Web Tokens. This allows forging a valid JWT. The issue will be patched in the upcoming 5.2.1 release.

Type:

CWE-347

 (Improper Verification of Cryptographic Signature)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Manydesigns -> Portofino 

 References:
https://mvnrepository.com/artifact/com.manydesigns/portofino
https://github.com/ManyDesigns/Portofino/security/advisories/GHSA-6g3c-2mh5-7q6x
https://github.com/ManyDesigns/Portofino/commit/8c754a0ad234555e813dcbf9e57d637f9f23d8fb
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