CVE-2019-19324 : Xmidt cjwt through 1.0.1 before 2019-11-25 maps unsupported algorithms to alg=no

Xmidt cjwt through 1.0.1 before 2019-11-25 maps unsupported algorithms to alg=none, which sometimes leads to untrusted accidental JWT acceptance.

Published 2020-03-20 18:15:14

Updated 2020-03-24 19:48:33

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2019-19324

Xmidt » Cjwt
Versions from including (>=) 1.0.1 and before (<) 2019-11-25
cpe:2.3:a:xmidt:cjwt:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 29 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
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
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE-670 Always-Incorrect Control Flow Implementation

The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated.

Assigned by: nvd@nist.gov (Primary)

https://github.com/xmidt-org/cjwt/pull/29#issuecomment-558356866

Correct return codes and eliminiate silent failure by schmidtw · Pull Request #29 · xmidt-org/cjwt · GitHub
Patch;Third Party Advisory
https://github.com/xmidt-org/cjwt/commit/9304d3e94242c1a6df77b21bde0e949392e1040a

Merge pull request #29 from xmidt-org/correct-return-codes-and-elimin… · xmidt-org/cjwt@9304d3e · GitHub
Patch;Third Party Advisory

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