CVE-2016-5821

Public Exploit

Description

Huawei HiSuite before 4.0.4.204_ove (Out of China) and before 4.0.4.301 (China) use a weak ACL (FILE_WRITE_DATA for BUILTIN\Users) for the HiSuite service directory, which allows local users to gain SYSTEM privileges via a Trojan horse (1) SspiCli.dll or (2) USERENV.dll file or possibly other unspecified DLL files.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory huawei.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://labs.bluefrostsecurity.de/advisories/bfs-sa-2016-003/
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160624-01-hisuite-en vendor advisory
http://www.securityfocus.com/archive/1/538797/100/0/threaded mailing list
http://packetstormsecurity.com/files/137733/Huawei-HiSuite-For-Windows-4.0.3.301-Privilege-Escalation.html exploit
http://www.securityfocus.com/bid/91418 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-5821?
CVE-2016-5821 has been scored as a high severity vulnerability.
How to fix CVE-2016-5821?
To fix CVE-2016-5821, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5821 being actively exploited in the wild?
It is possible that CVE-2016-5821 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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