National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-7796 Detail

Current Description

On Windows systems, the logger run by the Windows updater deletes the file "update.log" before it runs in order to write a new log of that name. The path to this file is supplied at the command line to the updater and could be used in concert with another local exploit to delete a different file named "update.log" instead of the one intended. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Firefox < 55.

Source:  MITRE
Description Last Modified:  06/11/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.0


Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 3.3 LOW
Vector: (AV:L/AC:M/Au:N/C:N/I:P/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securitytracker.com/id/1039124 Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1234401 Issue Tracking Patch Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/ Vendor Advisory

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7796
NVD Published Date:
06/11/2018
NVD Last Modified:
08/09/2018