CVE-2022-29185 (GCVE-0-2022-29185)

Vulnerability from cvelistv5 – Published: 2022-05-20 19:30 – Updated: 2025-04-23 18:24
VLAI?
Title
Observable Timing Discrepancy in totp-rs
Summary
totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds.
Severity ?
4.2 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-208 - Observable Timing Discrepancy
  • CWE-203 - Observable Discrepancy
Assigner
References
Impacted products
Vendor Product Version
constantoine totp-rs Affected: <1.1.0
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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