Lenovo ThinkServer BMC Firmware Download command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
5.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Lenovo ThinkServer. This issue affects some unknown processing of the component BMC Firmware Download Handler. The manipulation leads to command injection. This vulnerability is uniquely identified as CVE-2018-9086. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Lenovo ThinkServer (the affected version is unknown) and classified as critical. This issue affects an unknown code of the component BMC Firmware Download Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In some Lenovo ThinkServer-branded servers, a command injection vulnerability exists in the BMC firmware download command. This allows a privileged user to download and execute arbitrary code inside the BMC. This can only be exploited by authorized privileged users.

The bug was discovered 11/15/2018. The weakness was disclosed 11/16/2018 (Website). The advisory is shared at support.lenovo.com. The identification of this vulnerability is CVE-2018-9086 since 03/27/2018. The attack may be initiated remotely. A simple authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

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

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

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.7
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/27/2018 🔍
11/15/2018 +233 days 🔍
11/16/2018 +1 days 🔍
11/16/2018 +0 days 🔍
11/17/2018 +1 days 🔍
04/13/2020 +513 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-9086 (🔍)
GCVE (CVE): GCVE-0-2018-9086
GCVE (VulDB): GCVE-100-126977

Entryinfo

Created: 11/17/2018 11:36
Updated: 04/13/2020 21:23
Changes: 11/17/2018 11:36 (56), 04/13/2020 21:23 (2)
Complete: 🔍
Cache ID: 216::103

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

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