Medium severity · published Mar 21, 2024
CVE-2024-28102
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography
6.8
CVSS
1%
EPSS
No
On KEV
Description
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to version 1.5.6, an attacker can cause a denial of service attack by passing in a malicious JWE Token with a high compression ratio. When the server processes this token, it will consume a lot of memory and processing time. Version 1.5.6 fixes this vulnerability by limiting the maximum token length.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
11.0 · source: NVD
JW
Jwcrypto · Latchset
before 1.5.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-28102
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-28102
Patch
https://github.com/latchset/jwcrypto/commit/90477a3b6e73da69740e00b8161f53fea19b831f
Exploit
https://github.com/latchset/jwcrypto/security/advisories/GHSA-j857-7rvv-vj97
Mailing List
https://lists.debian.org/debian-lts-announce/2024/09/msg00026.html
Exploit
https://www.vicarius.io/vsociety/posts/denial-of-service-vulnerability-discovered-in-jwcrypto-cve-2024-28102-28103
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