CVE-2022-31742 — Observable Discrepancy in Mozilla Firefox
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 41.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 22
Description
An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6
Affected Packages8 packages
🔴Vulnerability Details
4CVEList▶
CVE-2022-31742: An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key↗2022-12-22
GHSA▶
GHSA-5frx-2qvr-6r92: An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key↗2022-12-22
OSV▶
CVE-2022-31742: An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key↗2022-12-22