Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-42615— Improper Restriction of Excessive Authentication Attempts vulnerability in CIRCL Vulnerability-Lookup

Quick assessment

Affected
CIRCL Vulnerability-Lookup
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.

Vulnerability-Lookup是Vulnerability-Lookup开源的一个管理披露漏洞的平台。 Vulnerability-Lookup 2.18.0之前版本存在安全漏洞，该漏洞源于未限制一次性密码失败尝试，可能导致暴力破解攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.42% · P35
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-42615

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Improper Restriction of Excessive Authentication Attempts vulnerability in CIRCL Vulnerability-Lookup
Source: CVE Program / CVE List V5
Vulnerability Description
In affected versions, vulnerability-lookup did not track or limit failed One-Time Password (OTP) attempts during Two-Factor Authentication (2FA) verification. An attacker who already knew or guessed a valid username and password could submit an arbitrary number of OTP codes without causing the account to be locked or generating any specific alert for administrators. This lack of rate-limiting and lockout on OTP failures significantly lowers the cost of online brute-force attacks against 2FA codes and increases the risk of successful account takeover, especially if OTP entropy is reduced (e.g. short numeric codes, user reuse, or predictable tokens). Additionally, administrators had no direct visibility into accounts experiencing repeated 2FA failures, making targeted attacks harder to detect and investigate. The patch introduces a persistent failed_otp_attempts counter on user accounts, locks the user after 5 invalid OTP submissions, resets the counter on successful verification, and surfaces failed 2FA attempts in the admin user list. This enforces an account lockout policy for OTP brute-force attempts and improves monitoring capabilities for suspicious 2FA activity.This issue affects Vulnerability-Lookup: before 2.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Vulnerability-Lookup 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vulnerability-Lookup是Vulnerability-Lookup开源的一个管理披露漏洞的平台。 Vulnerability-Lookup 2.18.0之前版本存在安全漏洞，该漏洞源于未限制一次性密码失败尝试，可能导致暴力破解攻击。
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
CIRCL Vulnerability-Lookup 0 ~ 2.18.0 -

II. Public POCs for CVE-2025-42615

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-42615

请登录查看更多情报信息。

Other References for CVE-2025-42615 (1)

Same Patch Batch · CIRCL · 2025-12-08 · 3 CVEs total

CVE-2025-42620 CSRF vulnerability in CIRCL Vulnerability-Lookup
CVE-2025-42616 CSRF vulnerability in CIRCL Vulnerability-Lookup

IV. Related Vulnerabilities

Same product: Vulnerability-Lookup
Same vendor: CIRCL
Same weakness: CWE-307

V. Comments for CVE-2025-42615

No comments yet

Leave a comment