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CVE-2024-28102— JWCrypto vulnerable to JWT bomb Attack in `deserialize` function

Quick assessment

Affected
latchset jwcrypto
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JWCrypto是JWCrypto开源的一个 Javascript 对象签名和加密 (JOSE) Web 标准的实现。 JWCrypto 1.5.5及之前版本存在安全漏洞，该漏洞源于允许攻击者通过传入高压缩比的恶意 JWE Token 来引发 DoS 攻击。

CVSS 6.8 · Medium EPSS 0.98% · P62

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2024-28102

Vulnerability Information
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Vulnerability Title
JWCrypto vulnerable to JWT bomb Attack in `deserialize` function
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
jwcrypto 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JWCrypto是JWCrypto开源的一个 Javascript 对象签名和加密 (JOSE) Web 标准的实现。 JWCrypto 1.5.5及之前版本存在安全漏洞，该漏洞源于允许攻击者通过传入高压缩比的恶意 JWE Token 来引发 DoS 攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
latchset jwcrypto < 1.5.6 -

II. Public POCs for CVE-2024-28102

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III. Intelligence Information for CVE-2024-28102

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Patches & Fixes for CVE-2024-28102 (1)

Vendor Advisories for CVE-2024-28102 (1)

IV. Related Vulnerabilities

Same product: jwcrypto
Same vendor: latchset
Same weakness: CWE-770

V. Comments for CVE-2024-28102

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