Bug 1872536 (CVE-2020-12423) - CVE-2020-12423 Mozilla: DLL Hijacking due to searching %PATH% for a library
Summary: CVE-2020-12423 Mozilla: DLL Hijacking due to searching %PATH% for a library
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-12423
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1870411
TreeView+ depends on / blocked
 
Reported: 2020-08-26 02:57 UTC by Doran Moppert
Modified: 2021-02-16 19:25 UTC (History)
2 users (show)

Fixed In Version: firefox 78, thunderbird 78
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Clone Of:
Environment:
Last Closed: 2020-08-26 07:17:35 UTC


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Description Doran Moppert 2020-08-26 02:57:50 UTC
When the Windows DLL "webauthn.dll" was missing from the Operating System, and a malicious one was placed in a folder in the user's %PATH%, Firefox may have loaded the DLL, leading to arbitrary code execution. 

*Note: This issue only affects the Windows operating system; other operating systems are unaffected.*



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-24/#CVE-2020-12423

Comment 1 Doran Moppert 2020-08-26 02:57:54 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Riccardo Ancarani

Comment 2 Product Security DevOps Team 2020-08-26 07:17:35 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12423


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