Multiple privilege escalation vulnerabilities in Microsoft Windows



Published: 2019-09-10
Risk Low
Patch available YES
Number of vulnerabilities 8
CVE-ID CVE-2019-1278
CVE-2019-1277
CVE-2019-1272
CVE-2019-1269
CVE-2019-1268
CVE-2019-1271
CVE-2019-1270
CVE-2019-1267
CWE-ID CWE-119
CWE-20
CWE-787
CWE-59
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU21001

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1278

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privilege so the system.

The vulnerability exists due to a boundary error in the unistore.dll when handling objects in memory. A local user can create a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1903

Windows Server: 2016 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1278


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU21002

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1277

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in Windows Audio Service when a malformed parameter is processed.

A local user can create a specially crafted application and use this vulnerability in conjunction with another issue to escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 1703 - 10 1903

Windows Server: 2019 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1277


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Buffer overflow

EUVDB-ID: #VU21003

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1272

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privilege so the system.

The vulnerability exists due to a boundary error in the way Windows handles calls to Advanced Local Procedure Call (ALPC). A local user can create a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1903

Windows Server: 2016 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1272


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Buffer overflow

EUVDB-ID: #VU21004

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1269

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privilege so the system.

The vulnerability exists due to a boundary error in the way Windows handles calls to Advanced Local Procedure Call (ALPC). A local user can create a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 10 1903

Windows Server: 2012 R2 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1269


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Input validation error

EUVDB-ID: #VU21005

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1268

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to Winlogon service does not properly handle file path information. A local user can run a specially crafted application and execute arbitrary code on the system with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1903

Windows Server: 2008 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1268


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds write

EUVDB-ID: #VU21006

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1271

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the hdAudio.sys driver. A local user can run a specially crafted application to trigger out-of-bounds read and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1903

Windows Server: 2008 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1271


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Link following

EUVDB-ID: #VU21007

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1270

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the way Windows store installer handles symbolic link in WindowsApps directory. A local user can use this vulnerability to execute arbitrary code on the target system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1903

Windows Server: 2016 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1270


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Link following

EUVDB-ID: #VU21008

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1267

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the way Microsoft Compatibility Appraiser handles symbolic and hard links when reading configuration files. A local user can use this vulnerability to execute arbitrary code on the target system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1903

Windows Server: 2008 R2 - 2019 1903

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1267


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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