Python
CVE-2024-28102
MEDIUM
Severity by source
AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Primary rating from Vendor (github) · only source for this CVE.
CVSS VectorVendor: github
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Lifecycle Timeline
1Blast Radius
ecosystem impact- 19 pypi packages depend on jwcrypto (14 direct, 5 indirect)
Ecosystem-wide dependent count for version 1.5.6.
DescriptionCVE.org
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.
AnalysisAI
JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. 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. Affected products include: Latchset Jwcrypto, Debian Debian Linux. Version information: version 1.5.6.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.
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External POC / Exploit Code
Leaving vuln.today