Supermicro BMC improper authentication

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.
9.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Supermicro BMC. It has been rated as critical. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in improper authentication. This vulnerability is cataloged as CVE-2013-4782. There is no exploit available.

Detailsinfo

A vulnerability classified as very critical has been found in Supermicro BMC (version unknown). This affects an unknown function. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Supermicro BMC implementation allows remote attackers to bypass authentication and execute arbitrary IPMI commands by using cipher suite 0 (aka cipher zero) and an arbitrary password.

The weakness was shared 07/08/2013 (Website). The advisory is shared at lists.gnu.org. This vulnerability is uniquely identified as CVE-2013-4782 since 07/08/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/06/2017).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 42415 (IPMI 2.0 Cipher Type Zero Authentication 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 (85571), OSVDB (93038†) and Vulnerability Center (SBV-40629†). The entries VDB-10469, VDB-68762 and VDB-64450 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Supermicro

Name

• BMC

License

• commercial

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/02/2013 🔍
07/08/2013 +6 days 🔍
07/08/2013 +0 days 🔍
07/08/2013 +0 days 🔍
07/21/2013 +13 days 🔍
03/24/2015 +611 days 🔍
05/06/2017 +774 days 🔍

Sourcesinfo

Advisory: lists.gnu.org
Status: Not defined

CVE: CVE-2013-4782 (🔍)
GCVE (CVE): GCVE-0-2013-4782
GCVE (VulDB): GCVE-100-64449
X-Force: 85571
OSVDB: 93038
Vulnerability Center: 40629 - Supermicro BMC Remote Authentication Bypass and IPMI Commands Execution via Cipher Zero (CVE-2013-4782), Critical

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 05/06/2017 19:23
Changes: 03/24/2015 15:54 (54), 05/06/2017 19:23 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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