High severity · published Dec 22, 2022
CVE-2022-22753
A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to grant Users write access to an arbitrary directory
7.1
CVSS
0.7%
EPSS
No
On KEV
Description
A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to grant Users write access to an arbitrary directory. This could have been used to escalate to SYSTEM access.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 97.0 · source: NVD
FE
Firefox Esr · Mozilla
before 91.6 · source: NVD
TH
Thunderbird · Mozilla
before 91.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-22753
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-22753
Exploit
https://bugzilla.mozilla.org/show_bug.cgi?id=1732435
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/
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