CVE-2019-1839

Current Description

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.

Basic Data

Published	August 21, 2019
Last Modified	October 09, 2019
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-20
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access Vector	LOCAL
CVSS 2 - Access Complexity	LOW
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	COMPLETE
CVSS 2 - Availability Impact	COMPLETE
CVSS 2 - Base Score	7.2
Severity	HIGH
Exploitability Score	3.9
Impact Score	10.0
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3 - Attack Vector	LOCAL
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	HIGH
CVSS 3 - User Interaction	NONE
CVSS 3 - Scope	UNCHANGED
CVSS 3 - Confidentiality Impact	HIGH
CVSS 3 - Integrity Impact	HIGH
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	6.7
CVSS 3 - Base Severity	MEDIUM
Exploitability Score	0.8
Base Severity	MEDIUM

Configurations

AND

OR - Configuration 1

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Cisco	Remote Phy 120 Firmware	*	*	*	*	*	*	*	*				6.4

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Cisco	Remote Phy 120	-	*	*	*	*	*	*	*

AND

OR - Configuration 2

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Cisco	Remote Phy 220 Firmware	*	*	*	*	*	*	*	*				3.1

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Cisco	Remote Phy 220	-	*	*	*	*	*	*	*

AND

OR - Configuration 3

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Cisco	Remote Phy Shelf 7200 Firmware	*	*	*	*	*	*	*	*				1.2

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Cisco	Remote Phy Shelf 7200	-	*	*	*	*	*	*	*

AND

OR - Configuration 4

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other
2.3	OS	Cisco	Cbr-8 Firmware	1.1	*	*	*	*	*	*	*
2.3	OS	Cisco	Cbr-8 Firmware	6.1	*	*	*	*	*	*	*
2.3	OS	Cisco	Cbr-8 Firmware	6.2	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Cisco	Cbr-8	-	*	*	*	*	*	*	*

Vulnerable Software List

Vendor	Product	Versions
Cisco	Cbr-8 Firmware	1.1, 6.1, 6.2
Cisco	Remote Phy 120 Firmware	*
Cisco	Remote Phy 220 Firmware	*
Cisco	Remote Phy Shelf 7200 Firmware	*

References

Name	Source	URL	Tags
20190821 Cisco Remote PHY Device Software Command Injection Vulnerability	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-rphy	CISCO	Vendor Advisory