Description
By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected products
- Mozilla / Firefox80.0
- Mozilla / Firefox78.0 – 78.2
- Mozilla / Firefoxunspecified – 80
- Mozilla / Firefox ESR68.12
- Mozilla / Firefox ESRunspecified – 68.12
- Mozilla / Firefox ESRunspecified – 78.2
- Mozilla / Firefox for Androidunspecified – 80
- Mozilla / firefox_mobile80.0
- Mozilla / Thunderbirdunspecified – 68.12
- Mozilla / Thunderbirdunspecified – 78.2
- Mozilla / Thunderbird68.12
References
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-39/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-41/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-36/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-38/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-40/
- VENDOR_ADVISORYhttps://www.mozilla.org/security/advisories/mfsa2020-37/
- MISChttps://bugzilla.mozilla.org/show_bug.cgi?id=1658214
Updated 38m ago · 8 sources