CVE-2024-42475— OAuth library for nim allows insecure generation of state values by generateState - entropy too low and uses regular PRNG instead of CSPRNG
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I. Basic Information for CVE-2024-42475
Vulnerability Information
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Vulnerability Title
OAuth library for nim allows insecure generation of state values by generateState - entropy too low and uses regular PRNG instead of CSPRNG
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the OAuth library for nim prior to version 0.11, the `state` values generated by the `generateState` function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While `state` isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. `generateState` should be using a CSPRNG. Version 0.11 modifies the `generateState` function to generate `state` values of at least 128 bits of entropy while using a CSPRNG.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用不充分的随机数
Source: NVD (National Vulnerability Database)
Vulnerability Title
oauth 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
oauth是Yoshihiro Tanaka个人开发者的一个适用于 nim 的 oauth 库。 oauth 0.11之前版本存在安全漏洞，该漏洞源于generateState函数生成的state值没有足够的熵，攻击者可以成功猜出这些值，从而对用户执行跨站请求伪造攻击，将用户的会话与攻击者的受保护资源相关联。
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
II. Public POCs for CVE-2024-42475
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN (versions 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier) and FortiProxy SSL-VPN (versions 7.2.0 through 7.2.1, 7.0.7 and earlier) may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. | https://github.com/projectdiscovery/nuclei-templates/blob/main/code/cves/2022/CVE-2022-42475.yaml | POC Details |
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- https://github.com/CORDEA/oauth/security/advisories/GHSA-332c-q46h-fg8fx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2024-42475
IV. Related Vulnerabilities
Same product: oauth
Same vendor: CORDEA
Same weakness: CWE-330
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