CVE-2015-1726 : Detail

CVE-2015-1726

Memory Corruption
9.42%V3
Local
2015-06-09
23h00 +00:00
2018-10-12
17h57 +00:00
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CVE Descriptions

Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "Microsoft Windows Kernel Brush Object Use After Free Vulnerability."

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Metrics

Metrics Score Severity CVSS Vector Source
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Exploit information

Exploit Database EDB-ID : 38269

Publication date : 2015-09-21 22h00 +00:00
Author : Nils Sommer
EDB Verified : Yes

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.zip

Products Mentioned

Configuraton 0

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8 >> Version -

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_rt >> Version -

Microsoft>>Windows_rt_8.1 >> Version -

Microsoft>>Windows_server_2003 >> Version -

Microsoft>>Windows_server_2003 >> Version r2

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Microsoft>>Windows_vista >> Version -

References

https://www.exploit-db.com/exploits/38269/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securitytracker.com/id/1032525
Tags : vdb-entry, x_refsource_SECTRACK