vulnwire
5.3med

CVE-2016-6298

jwcrypto lacks the Random Filling protection mechanism

Also known as GHSA-wg33-x934-3ghh, PYSEC-2016-4

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
2.2%
percentile 83%
Public exploits
0
none known

The _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).

Exploit prediction (EPSS)

2.23% probability of exploitation in the next 30 days, higher than 83% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.15.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub3.05.3CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

EcosystemPackageAffectedFixed in
pypijwcrypto
<0.3.2
<0.4.0
0.3.2
0.4.0

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • github.com /latchset/jwcrypto/issues/65 · x_refsource_CONFIRM, x_transferred
  • github.com /latchset/jwcrypto/pull/66 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/92729 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /latchset/jwcrypto/releases/tag/v0.3.2 · x_refsource_CONFIRM, x_transferred
  • github.com /latchset/jwcrypto/commit/eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba · x_refsource_CONFIRM, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2016-6298 · advisory
  • github.com /latchset/jwcrypto · package
  • github.com /pypa/advisory-database/tree/main/vulns/jwcrypto/PYSEC-2016-4.yaml · web
  • web.archive.org /web/20200227230613/http://www.securityfocus.com/bid/92729 · web
  • github.com /advisories/GHSA-wg33-x934-3ghh · advisory

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.