9.8crit
CVE-2017-18239
Exposure of Sensitive information in authentikat-jwt
Also known as GHSA-3rhm-67j6-42jq
Published 8 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 80%
Public exploits
0
none known
Summary
A time-sensitive equality check on the JWT signature in the JsonWebToken.validate method in main/scala/authentikat/jwt/JsonWebToken.scala in authentikat-jwt (aka com.jason-goodwin/authentikat-jwt) version 0.4.5 and earlier allows the supplier of a JWT token to guess bit after bit of the signature by repeating validation requests.
Exploit prediction (EPSS)
1.96% probability of exploitation in the next 30 days, higher than 80% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.jason-goodwin:authentikat-jwt_2.12 | <0.4.6 | 0.4.6 |
References
- github.com /jasongoodwin/authentikat-jwt/commit/2d2fa0d40ac8f2f7aa7e9b070fa1a25eee082cb0 · x_refsource_MISC, x_transferred
- github.com /jasongoodwin/authentikat-jwt/issues/12 · x_refsource_MISC, x_transferred
- github.com /jasongoodwin/authentikat-jwt/pull/36 · x_refsource_MISC, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-18239 · advisory
- github.com /advisories/GHSA-3rhm-67j6-42jq · advisory
- github.com /jasongoodwin/authentikat-jwt · package
Sources
- CVE List: CVE-2017-18239
- GitHub Advisory: GHSA-3rhm-67j6-42jq
- NVD: CVE-2017-18239
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