CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $5k-$25k | 0.00 |
A vulnerability was found in Microsoft Internet Explorer 9/10/11 (Web Browser) and classified as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Microsoft Internet Explorer 9 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability," a different vulnerability than CVE-2015-2485 and CVE-2015-2541.
The weakness was presented 09/08/2015 with KnownSec as MS15-094 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. The identification of this vulnerability is CVE-2015-2491 since 03/19/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/14/2022). It is expected to see the exploit prices for this product decreasing in the near future.
The vulnerability scanner Nessus provides a plugin with the ID 85845 (MS15-094: Cumulative Security Update for Internet Explorer (3089548)), 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 100257 (Microsoft Internet Explorer Cumulative Security Update (MS15-094)).
Applying the patch MS15-094 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20713.
The vulnerability is also documented in the vulnerability database at Tenable (85845). See 77596, 77597, 77598 and 77599 for similar entries.
Product
Type
Vendor
Name
Version
License
Support
- end of life
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 85845
Nessus Name: MS15-094: Cumulative Security Update for Internet Explorer (3089548)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: MS15-094
TippingPoint: 🔍
Fortigate IPS: 🔍
Timeline
03/19/2015 🔍09/08/2015 🔍
09/08/2015 🔍
09/08/2015 🔍
09/08/2015 🔍
09/08/2015 🔍
09/08/2015 🔍
09/09/2015 🔍
09/09/2015 🔍
06/14/2022 🔍
Sources
Vendor: microsoft.comAdvisory: MS15-094
Organization: KnownSec
Status: Confirmed
CVE: CVE-2015-2491 (🔍)
SecurityTracker: 1033487 - Microsoft Internet Explorer Multiple Bugs Let Remote Users Obtain Potentially Sensitive Information, Gain Elevated Privileges, Delete Files, and Execute Arbitrary Code
Vulnerability Center: 52500 - [MS15-094] Microsoft Internet Explorer 9 - 11 Remote Code Execution due to Memory Corruption - CVE-2015-2491, Critical
SecurityFocus: 76577 - Microsoft Internet Explorer CVE-2015-2491 Remote Memory Corruption Vulnerability
See also: 🔍
Entry
Created: 09/09/2015 10:02Updated: 06/14/2022 13:15
Changes: 09/09/2015 10:02 (66), 04/07/2017 12:14 (12), 06/14/2022 13:15 (2)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.