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CVE-2021-38492

When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1.

Published

2021-11-03T01:15:07.200

Last Modified

2024-11-21T06:17:14.130

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 92.0	Yes
Application	mozilla	firefox	< 91.1	Yes
Application	mozilla	firefox_esr	< 78.14	Yes
Application	mozilla	thunderbird	< 78.14	Yes
Application	mozilla	thunderbird	< 91.1	Yes
Operating System	microsoft	windows	-	No

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1721107 Exploit, Issue Tracking, Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/202208-14 Third Party Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-38/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-39/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-40/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-41/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2021-42/ Vendor Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1721107 Exploit, Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202208-14 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-38/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-39/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-40/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-41/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2021-42/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)