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Advisories

Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover

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Severity
critical
Date
Affecting

  • course-tencent-cloud <= 2.0.1

CWE
  • CWE-307 Improper Restriction of Excessive Authentication Attempts
CVSS
9.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
hieuPenguinnn
Description
Course-tencent-cloud through 2.0.1 contains an improper restriction of authentication attempts vulnerability that allows unauthenticated attackers to brute force 6-digit SMS/email verification codes, which are never invalidated or attempt-limited. Attackers who know a victim's phone or email can trigger a code and rotate source IPs against the password reset and verify login endpoints to take over accounts.

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