Cisco Remote PHY Device Software Linux Shell Argument input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Remote PHY Device Software. It has been rated as critical. The affected element is an unknown function of the component Linux Shell. Performing a manipulation as part of Argument results in input validation. This vulnerability was named CVE-2019-1839. The attack needs to be approached locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Cisco Remote PHY Device Software (version unknown). This affects an unknown function of the component Linux Shell. The manipulation as part of a Argument leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in Cisco Remote PHY Device Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability occurs because the affected software improperly sanitizes user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying various CLI commands with crafted arguments. A successful exploit could allow the attacker to run arbitrary commands as the root user, allowing complete compromise of the system.

The weakness was presented 08/21/2019 as cisco-sa-20190821-rphy as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2019-1839 since 12/06/2018. An attack has to be approached locally. The successful exploitation requires a authentication. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
08/21/2019 +258 days 🔍
08/22/2019 +1 days 🔍
11/28/2023 +1559 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190821-rphy
Status: Confirmed

CVE: CVE-2019-1839 (🔍)
GCVE (CVE): GCVE-0-2019-1839
GCVE (VulDB): GCVE-100-140553

Entryinfo

Created: 08/22/2019 09:33
Updated: 11/28/2023 11:40
Changes: 08/22/2019 09:33 (41), 08/02/2020 16:39 (17), 11/28/2023 11:40 (13)
Complete: 🔍
Cache ID: 216::103

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