VDB-76846 · CVE-2015-2890 · VU#577140

Intel BIOS Chipset 6 UEFI Write Protector Sleep Mode code

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

A vulnerability has been found in Intel BIOS Chipset 6 and classified as critical. This vulnerability affects an unknown function of the component UEFI Write Protector Handler. The manipulation as part of a Sleep Mode leads to a code vulnerability. The CWE definition for the vulnerability is CWE-17. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 07/30/2015 by Corey Kallenberg (xeno) with Core (Website). The advisory is available at reverse.put.as. This vulnerability was named CVE-2015-2890 since 04/03/2015. The exploitation appears to be easy. Local access is required to approach this attack. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/26/2024). This vulnerability has a historic impact due to its background and reception.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370202 (Dell Products BIOS UEFI Write Protection Bypass Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (105219), SecurityFocus (BID 76128†) and Vulnerability Center (SBV-52360†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Intel

Name

BIOS

Version

Chipset 6

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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: 🔍

Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/03/2015 🔍
07/30/2015 +118 days 🔍
07/30/2015 +0 days 🔍
07/30/2015 +0 days 🔍
07/31/2015 +1 days 🔍
07/31/2015 +0 days 🔍
08/30/2015 +30 days 🔍
11/26/2024 +3376 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: reverse.put.as
Researcher: Corey Kallenberg (xeno)
Organization: Core
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2890 (🔍)
GCVE (CVE): GCVE-0-2015-2890
GCVE (VulDB): GCVE-100-76846
CERT: 🔍
X-Force: 105219 - Multiple vendor BIOS implementations privilege escalation
SecurityFocus: 76128 - Dell BIOS Implementation CVE-2015-2890 Local Security Vulnerability
Vulnerability Center: 52360 - Dell BIOS before A12 Local Code Execution due to a Flaw in EFI Flash, Medium

Entryinfo

Created: 07/31/2015 10:29 AM
Updated: 11/26/2024 11:30 PM
Changes: 07/31/2015 10:29 AM (53), 11/14/2017 08:04 AM (12), 06/07/2022 08:20 AM (3), 06/07/2022 08:24 AM (11), 11/06/2024 04:48 PM (15), 11/26/2024 11:30 PM (2)
Complete: 🔍
Cache ID: 18:DCE:40