Multiple vulnerabilities in Microsoft Internet Explorer and Edge

1) Memory corruption

EUVDB-ID: #VU5237

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3375

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 9 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

2) Memory corruption

EUVDB-ID: #VU5238

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3247

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error. A remote attacker can create a specially crafted Web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

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) Cross-site scripting

EUVDB-ID: #VU5239

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3291

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-input. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user’s browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 11

CPE2.3

cpe:2.3:a:microsoft:microsoft_internet_explorer:11:*:*:*:*:*:*:

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

4) Privilege escalation

EUVDB-ID: #VU5240

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3292

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper checking of zone and integrity settings. A remote attacker can create a specially crafted content, trick the victim into opening it, escape the sandbox and gain elevated privileges.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 10 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

5) Memory corruption

EUVDB-ID: #VU5241

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3295

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 10 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

6) Memory corruption

EUVDB-ID: #VU5242

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3297

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error. A remote attacker can create a specially crafted Web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Edge: All versions

Microsoft Internet Explorer: 9 - 11

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

7) Memory corruption

EUVDB-ID: #VU5243

Risk: High

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3324

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in complete compromise of the vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 9 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

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.

8) Memory corruption

EUVDB-ID: #VU5244

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2016-3325

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

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

The weakness exists due to boundary error when handling a malicious file. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and gain access to potentially sensitive data.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

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.

9) Memory corruption

EUVDB-ID: #VU5245

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2016-3351

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The weakness exists due to boundary error when handling of malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and gain access to arbitrary data.

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

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 10 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104
http://technet.microsoft.com/en-us/library/security/ms16-105

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

10) Security bypass

EUVDB-ID: #VU5246

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3353

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper handling of .URL files from the Internet zone. A remot attacker can create a specially crafted .URL file, trick the victim into opening it and bypass security features in the victim's browser.

Successful exploitation of the vulnerability results in security bypass on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Microsoft Internet Explorer: 9 - 11

Microsoft Edge: All versions

CPE2.3

External links

http://technet.microsoft.com/en-us/library/security/ms16-104

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

Risk	High
Patch available	YES
Number of vulnerabilities	10
CVE-ID	CVE-2016-3375 CVE-2016-3247 CVE-2016-3291 CVE-2016-3292 CVE-2016-3295 CVE-2016-3297 CVE-2016-3324 CVE-2016-3325 CVE-2016-3351 CVE-2016-3353
CWE-ID	CWE-119 CWE-79 CWE-20
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #7 is available. Public exploit code for vulnerability #8 is available. Vulnerability #9 is being exploited in the wild.
Vulnerable software	Microsoft Internet Explorer Client/Desktop applications / Web browsers Microsoft Edge Client/Desktop applications / Web browsers
Vendor	Microsoft