VDB-135164 · CVE-2019-1780 · BID 108392

Cisco NX-OS/FXOS prior 8.3(1) CLI command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Cisco NX-OS and FXOS (Router Operating System). Affected by this issue is an unknown functionality of the component CLI. 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. CVE summarizes:

A vulnerability in the CLI of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to execute arbitrary commands on the underlying operating system of an affected device with elevated privileges. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability. NX-OS versions prior to 8.3(1) are affected. NX-OS versions prior to 8.3(1) are affected.

The bug was discovered 05/15/2019. The weakness was shared 05/16/2019 as cisco-sa-20190515-nxos-fxos-cm as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2019-1780 since 12/06/2018. The attack needs to be approached locally. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

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 $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316459 (Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1780)(cisco-sa-20190515-nxos-fxos-cmdinj-1780)).

Upgrading to version 8.3(1) eliminates this vulnerability.

The entry 135109 is related to this item.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 4.2
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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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
ATT&CK: T1202

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: NX-OS/FXOS 8.3(1)

Timelineinfo

12/06/2018 🔍
05/15/2019 +160 days 🔍
05/16/2019 +1 days 🔍
05/17/2019 +1 days 🔍
09/21/2023 +1588 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190515-nxos-fxos-cm
Status: Confirmed

CVE: CVE-2019-1780 (🔍)
SecurityFocus: 108392

See also: 🔍

Entryinfo

Created: 05/17/2019 07:28
Updated: 09/21/2023 15:38
Changes: 05/17/2019 07:28 (62), 06/13/2020 09:59 (1), 09/21/2023 15:32 (4), 09/21/2023 15:38 (12)
Complete: 🔍

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