Two-factor authentication bypass via unlimited code attempts
Published Dec 26, 2023 · Updated Aug 2, 2024
Incorrect authorization in Passwork before 6.2.0 allows remote authenticated users to bypass 2FA by brute-forcing a six-digit code. The 2FA code submission flow accepts repeated sequential one-time-code attempts without rate limiting or account lockout. Valid primary credentials are required; successful exploitation completes authentication and exposes password-vault data available to the compromised account.
Summary
What happened
Incorrect authorization in Passwork before 6.2.0 allows remote authenticated users to bypass 2FA by brute-forcing a six-digit code. The 2FA code submission flow accepts repeated sequential one-time-code attempts without rate limiting or account lockout. Valid primary credentials are required; successful exploitation completes authentication and exposes password-vault data available to the compromised account.
The record
- CVE
- CVE-2023-49949
- Published
- Dec 26, 2023
- Updated
- Aug 2, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-863, T1110
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 26, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Passwork 2FA brute-force demonstrationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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