Microsoft Internet Explorer up to 11 ASLR information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Internet Explorer up to 11. Affected by this issue is some unknown functionality of the component ASLR. This manipulation causes information disclosure. This vulnerability is registered as CVE-2015-2421. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Internet Explorer up to 11 (Web Browser) and classified as critical. Affected by this vulnerability is some unknown processing of the component ASLR. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Internet Explorer 6 through 11 allows remote attackers to bypass the ASLR protection mechanism via a crafted web site, aka "Internet Explorer ASLR Bypass."

The weakness was published 07/14/2015 with Microsoft as MS15-065 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2015-2421 since 03/19/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 84761 (MS15-065: Cumulative Security Update for Internet Explorer (3076321)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100244 (Microsoft Internet Explorer Cumulative Security Update (MS15-065)).

Applying the patch MS15-065 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20057.

The vulnerability is also documented in the databases at Tenable (84761), SecurityFocus (BID 75636†) and Vulnerability Center (SBV-51194†). Similar entries are available at VDB-76435, VDB-76436, VDB-76437 and VDB-76441. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84761
Nessus Name: MS15-065: Cumulative Security Update for Internet Explorer (3076321)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS15-065
TippingPoint: 🔍

Timelineinfo

03/19/2015 🔍
07/14/2015 +117 days 🔍
07/14/2015 +0 days 🔍
07/14/2015 +0 days 🔍
07/14/2015 +0 days 🔍
07/15/2015 +1 days 🔍
07/15/2015 +0 days 🔍
11/29/2024 +3425 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-065
Organization: Microsoft
Status: Confirmed

CVE: CVE-2015-2421 (🔍)
GCVE (CVE): GCVE-0-2015-2421
GCVE (VulDB): GCVE-100-76495

OVAL: 🔍

SecurityFocus: 75636 - Microsoft Internet Explorer CVE-2015-2421 ASLR Security Bypass Vulnerability
SecurityTracker: 1032894
Vulnerability Center: 51194 - [MS15-065] Microsoft Internet Explorer 6 through 11 Remote Bypass Restrictions Vulnerability - CVE-2015-2421, Medium

See also: 🔍

Entryinfo

Created: 07/15/2015 14:15
Updated: 11/29/2024 19:13
Changes: 07/15/2015 14:15 (60), 04/07/2017 12:13 (11), 05/31/2022 21:54 (3), 05/31/2022 22:07 (1), 11/29/2024 19:13 (16)
Complete: 🔍
Cache ID: 216::103

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