Advisory Details

December 1st, 2020

McAfee Total Protection Junction Privilege Escalation Vulnerability

ZDI-20-1388
ZDI-CAN-11575

CVE ID CVE-2020-7335
CVSS SCORE 7.0, (AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS McAfee
AFFECTED PRODUCTS Total Protection
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of McAfee Total Protection. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the handling of junctions. By creating a junction, an attacker can abuse the product to overwrite the contents of a chosen file. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

ADDITIONAL DETAILS McAfee has issued an update to correct this vulnerability. More details can be found at:
https://service.mcafee.com/webcenter/portal/oracle/webcenter/page/scopedMD/s55728c97_466d_4ddb_952d_05484ea932c6/Page29.jspx?wc.contextURL=%2Fspaces%2Fcp&articleId=TS103089&_afrLoop=70260263328735&leftWidth=0%25&showFooter=false&showHeader=false&rightWidth=0%25&centerWidth=100%25#!%40%40%3FshowFooter%3Dfalse%26_afrLoop%3D70260263328735%26articleId%3DTS103089%26leftWidth%3D0%2525%26showHeader%3Dfalse%26wc.contextURL%3D%252Fspaces%252Fcp%26rightWidth%3D0%2525%26centerWidth%3D100%2525%26_adf.ctrl-state%3D8p9y2e9ky_31
DISCLOSURE TIMELINE
  • 2020-08-19 - Vulnerability reported to vendor
  • 2020-12-01 - Coordinated public release of advisory
CREDIT Anonymous
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