Description
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:RUser InteractionRequired
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Novell Inc.
commercial·US
Mozilla Corp.
oss-project·USaka mozilla
Red Hat Inc.
commercial·USaka red hat
Сообщество свободного программного обеспечения
oss-projectaka fsf
Canonical Ltd.
commercial·GBaka canonical
ООО «Ред Софт»
commercial·RUaka red soft
and 17 more affected products View all →
Exploitability
1 exploit source identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Privilege Escalation
References
https://access.redhat.com/security/cve/CVE-2021-23999
access.redhat.com
https://redos.red-soft.ru/updatesec/
redos.red-soft.ru
https://security-tracker.debian.org/tracker/CVE-2021-23999
security-tracker.debian.org
and 14 more references View all →
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