Advisory Details

February 11th, 2020

Symantec Endpoint Protection Manager secars Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-20-223
ZDI-CAN-9535

CVE ID CVE-2020-5829
CVSS SCORE 3.3, AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AFFECTED VENDORS Symantec
AFFECTED PRODUCTS Endpoint Protection
VULNERABILITY DETAILS

This vulnerability allows local attackers to disclose sensitive information on affected installations of Symantec Endpoint Protection Manager. 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 secars.dll module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the semwebsrv user.

ADDITIONAL DETAILS Symantec has issued an update to correct this vulnerability. More details can be found at:
https://support.symantec.com/us/en/article.SYMSA1505.html
DISCLOSURE TIMELINE
  • 2019-10-22 - Vulnerability reported to vendor
  • 2020-02-11 - Coordinated public release of advisory
CREDIT KPC
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