CVE-2017-11742 — HIGH (7.8)

Vulnerability Description

The writeRandomBytes_RtlGenRandom function in xmlparse.c in libexpat in Expat 2.2.1 and 2.2.2 on Windows allows local users to gain privileges via a Trojan horse ADVAPI32.DLL in the current working directory because of an untrusted search path, aka DLL hijacking.

CVSS Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libexpat Project	Libexpat	2.2.1
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-426

References

http://www.securityfocus.com/bid/100147Third Party AdvisoryVDB Entry
https://github.com/libexpat/libexpat/issues/82Issue TrackingPatchThird Party Advisory
http://www.securityfocus.com/bid/100147Third Party AdvisoryVDB Entry
https://github.com/libexpat/libexpat/issues/82Issue TrackingPatchThird Party Advisory

FAQ

What is CVE-2017-11742?

CVE-2017-11742 is a vulnerability with a CVSS score of 7.8 (HIGH). The writeRandomBytes_RtlGenRandom function in xmlparse.c in libexpat in Expat 2.2.1 and 2.2.2 on Windows allows local users to gain privileges via a Trojan horse ADVAPI32.DLL in the current working di...

How severe is CVE-2017-11742?

CVE-2017-11742 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-11742?

Check the references section above for vendor advisories and patch information. Affected products include: Libexpat Project Libexpat, Microsoft Windows.