VDB-106939 · CVE-2017-12255 · BID 100932

Centra UCS Central Software CLI Argument input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Centra UCS Central Software. It has been rated as problematic. This affects an unknown function of the component CLI. This manipulation as part of Argument causes input validation. The identification of this vulnerability is CVE-2017-12255. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Centra UCS Central Software (version unknown). Affected by this vulnerability is an unknown function of the component CLI. The manipulation as part of a Argument leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the CLI of Cisco UCS Central Software could allow an authenticated, local attacker to gain shell access. The vulnerability is due to insufficient input validation of commands entered in the CLI, aka a Restricted Shell Break Vulnerability. An attacker could exploit this vulnerability by entering a specific command with crafted arguments. An exploit could allow the attacker to gain shell access to the underlying system. Cisco Bug IDs: CSCve70762.

The bug was discovered 09/20/2017. The weakness was shared 09/21/2017 with Cisco as cisco-sa-20170920-ucs as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2017-12255 since 08/03/2017. Attacking locally is a requirement. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not publicly available.

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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316148 (Cisco UCS Central Software Command Line Interface Restricted Shell Break Vulnerability (cisco-sa-20170920-ucs)).

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 vulnerability database at SecurityFocus (BID 100932†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/03/2017 🔍
09/20/2017 +48 days 🔍
09/20/2017 +0 days 🔍
09/21/2017 +1 days 🔍
09/21/2017 +0 days 🔍
09/21/2017 +0 days 🔍
01/13/2021 +1210 days 🔍

Sourcesinfo

Advisory: cisco-sa-20170920-ucs
Researcher: Cisco.
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12255 (🔍)
GCVE (CVE): GCVE-0-2017-12255
GCVE (VulDB): GCVE-100-106939
SecurityFocus: 100932 - Cisco UCS Central Software Command Line Interface CVE-2017-12255 Command Injection Vulnerability
SecurityTracker: 1039412

Entryinfo

Created: 09/21/2017 21:39
Updated: 01/13/2021 17:32
Changes: 09/21/2017 21:39 (63), 11/18/2019 13:50 (5), 01/13/2021 17:28 (2), 01/13/2021 17:32 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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