CVE-2019-9729 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer signedness error and a heap-based buffer underflow.

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
Shanda	Maplestory Online	160.0

Related Weaknesses (CWE)

CWE-787 CWE-129

References

https://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevationExploitThird Party Advisory
https://github.com/DoubleLabyrinth/SdoKeyCrypt-sys-local-privilege-elevationExploitThird Party Advisory

FAQ

What is CVE-2019-9729?

CVE-2019-9729 is a vulnerability with a CVSS score of 7.8 (HIGH). In Shanda MapleStory Online V160, the SdoKeyCrypt.sys driver allows privilege escalation to NT AUTHORITY\SYSTEM because of not validating the IOCtl 0x8000c01c input value, leading to an integer signed...

How severe is CVE-2019-9729?

CVE-2019-9729 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-2019-9729?

Check the references section above for vendor advisories and patch information. Affected products include: Shanda Maplestory Online.