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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