XXE in Microsoft Internet Explorer

Published: 2019-04-15 13:36:11
Severity Medium
Patch available NO
Number of vulnerabilities 1
CVE ID N/A
CVSSv3 4.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:P/RL:U/RC:C]
CWE ID CWE-611
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software Microsoft Internet Explorer
Vulnerable software versions Microsoft Internet Explorer 11
Microsoft Internet Explorer 10
Microsoft Internet Explorer 9
Vendor URL Microsoft

Security Advisory

1) Improper restriction of XML external entity reference (XXE)

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to improper restriction of XML external entity reference when processing .mht files. A remote attacker can trick the victim into opening a specially crafted .mht file and ready contents of arbitrary file on the system with privilege of the current user.

Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links

http://hyp3rlinx.altervista.org/advisories/MICROSOFT-INTERNET-EXPLORER-v11-XML-EXTERNAL-ENTITY-INJECTION-0DAY.txt

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