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Microsoft Windows Kernel - 'HmgAllocateObjectAttr' Use-After-Free (MS15-061)
| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | The vulnerability of the Windows operating system, which allows a hacker to increase their privileges | 20 Jan 201600:00 | – | bdu_fstec |
 | CVE-2015-1726 | 22 Sep 201500:00 | – | circl |
 | Microsoft Windows kernel brush object memory misreference vulnerability | 10 Jun 201500:00 | – | cnvd |
 | CVE-2015-1726 | 10 Jun 201501:00 | – | cve |
 | CVE-2015-1726 | 10 Jun 201501:00 | – | cvelist |
 | EUVD-2015-1856 | 7 Oct 202500:30 | – | euvd |
 | KLA10599 Multiple vulnerabilities in Microsoft Products | 9 Jun 201500:00 | – | kaspersky |
 | CVE-2015-1726 | 10 Jun 201501:59 | – | nvd |
 | Microsoft Windows Kernel-Mode Driver Privilege Elevation Vulnerabilities (3057839) | 10 Jun 201500:00 | – | openvas |
 | Design/Logic Flaw | 10 Jun 201501:59 | – | prion |
10
Source: https://code.google.com/p/google-security-research/issues/detail?id=320
The PoC bug checks reliably with Special Pool enabled on writing to freed memory. A reference to the freed memory is held at offset +0x10 of the THREADINFO object. This memory is referenced in HmgAllocateObjectAttr which is called in multiple locations. The freed memory is a struct inside a Brush Object which is freed in the call NtGdiDeleteObjectApp.
Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38269.zipData
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22 Sep 2015 00:00Current
5.2Medium risk
Vulners AI Score5.2
CVSS 27.2
EPSS0.03364