Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5, requests to open external protocol URLs could be attributed to a document other than the one that initiated them, causing the requestingUrl passed to session.setPermissionRequestHandler to identify trusted content for a launch requested by untrusted content. An application that grants openExternal based on the requesting origin and allows untrusted content to open or navigate windows could therefore allow that content to launch an OS-registered external application.
This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.5.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 15
https://github.com/electron/electron/commit/25057643bf6d9a20bad69e45707551ccf54…
security-advisories@github.com
https://github.com/electron/electron/commit/8aa5414f73792ed3b2e3f9ab6391b1832e6…
security-advisories@github.com
https://github.com/electron/electron/commit/92a783952891805f2f82f344c40a6917b98…
security-advisories@github.com
https://github.com/electron/electron/commit/e0a20d5277b567aea8603f8e9852a434140…
security-advisories@github.com
https://github.com/electron/electron/commit/e3a400911084537bce7380ffea8af939572…
security-advisories@github.com
https://github.com/electron/electron/pull/53682
security-advisories@github.com
https://github.com/electron/electron/pull/53696
security-advisories@github.com
https://github.com/electron/electron/pull/53697
security-advisories@github.com
https://github.com/electron/electron/pull/53698
security-advisories@github.com
https://github.com/electron/electron/pull/53699
security-advisories@github.com
https://github.com/electron/electron/releases/tag/v42.11.3
security-advisories@github.com
https://github.com/electron/electron/releases/tag/v43.7.0
security-advisories@github.com
https://github.com/electron/electron/releases/tag/v44.3.0
security-advisories@github.com
https://github.com/electron/electron/releases/tag/v45.0.0-alpha.5
security-advisories@github.com
https://github.com/electron/electron/security/advisories/GHSA-997q-gvvc-jwmx
security-advisories@github.com