Multiple vulnerabilities in Microsoft Windows

Published: 2015-05-12 | Updated: 2017-03-10
Severity Medium
Patch available YES
Number of vulnerabilities 6
CVE ID CVE-2015-1701
CVE-2015-1680
CVE-2015-1679
CVE-2015-1678
CVE-2015-1677
CVE-2015-1676
CWE ID CWE-264
CWE-401
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #4 is available.
Public exploit code for vulnerability #5 is available.
Public exploit code for vulnerability #6 is available.
Vulnerable software Windows Subscribe
Windows Server
Vendor Microsoft

Security Advisory

1) Privilege escalation

Severity: Medium

CVSSv3: 8.2 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1701

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to improper access control. A local attacker can create a specially crafted application, execute a callback in userspace and use data from the System token to execute arbitrary code on the system with root privileges.

Successful exploitation of the vulnerability may result in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, Vista

Windows Server: 2008

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

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. However, a fully functional exploit for this vulnerability is available.

2) Information disclosure

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1680

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerabiity allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to private address information leaking during a function call. A remote attacker can bypass the ASLR protection mechanism, gain access to sensitive information and use it to launch further attacks against the affected system.

Successful exploitation of this vulnerability results in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8, 8.1, RT 8.1, Vista

Windows Server: 2003, 2008, 2008 R2, 2012, 2012 R2

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Information disclosure

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1679

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerabiity allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to private address information leaking during a function call. A remote attacker can bypass the ASLR protection mechanism, gain access to sensitive information and use it to launch further attacks against the affected system.

Successful exploitation of this vulnerability results in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8, 8.1, RT 8.1, Vista

Windows Server: 2003, 2008, 2008 R2, 2012, 2012 R2

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

4) Information disclosure

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1678

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerabiity allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to private address information leaking during a function call. A remote attacker can bypass the ASLR protection mechanism, gain access to sensitive information and use it to launch further attacks against the affected system.

Successful exploitation of this vulnerability results in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8, 8.1, RT 8.1, Vista

Windows Server: 2003, 2008, 2008 R2, 2012, 2012 R2

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

5) Information disclosure

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1677

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerabiity allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to private address information leaking during a function call. A remote attacker can bypass the ASLR protection mechanism, gain access to sensitive information and use it to launch further attacks against the affected system.

Successful exploitation of this vulnerability results in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8, 8.1, RT 8.1, Vista

Windows Server: 2003, 2008, 2008 R2, 2012, 2012 R2

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

6) Information disclosure

Severity: Low

CVSSv3: 4.8 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-1676

CWE-ID: CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Description

The vulnerabiity allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to private address information leaking during a function call. A remote attacker can bypass the ASLR protection mechanism, gain access to sensitive information and use it to launch further attacks against the affected system.

Successful exploitation of this vulnerability results in information disclosure on the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8, 8.1, RT 8.1, Vista

Windows Server: 2003, 2008, 2008 R2, 2012, 2012 R2

CPE External links

https://technet.microsoft.com/en-us/library/security/ms15-051

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.