CVE-2018-0349: A vulnerability in the Cisco SD-WAN Solution could allow an authenticated, remote attacker to overwrite arbitrary files on the underlying operating system of…

PriorityP265critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

3.05%

86.1th percentile

A vulnerability in the Cisco SD-WAN Solution could allow an authenticated, remote attacker to overwrite arbitrary files on the underlying operating system of an affected device. The vulnerability is due to improper input validation of the request admin-tech command in the CLI of the affected software. An attacker could exploit this vulnerability by modifying the request admin-tech command in the CLI of an affected device. A successful exploit could allow the attacker to overwrite arbitrary files on the underlying operating system of an affected device and escalate their privileges to the root user. This vulnerability affects the following Cisco products if they are running a release of the Cisco SD-WAN Solution prior to Release 18.3.0: vBond Orchestrator Software, vEdge 100 Series Routers, vEdge 1000 Series Routers, vEdge 2000 Series Routers, vEdge 5000 Series Routers, vEdge Cloud Router Platform, vManage Network Management Software, vSmart Controller Software. Cisco Bug IDs: CSCvi69852, CSCvi69856.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
cisco	sd-wan_solution	—	—
cisco	vedge-1000_firmware	< 18.3.0	18.3.0
cisco	vedge-100_firmware	< 18.3.0	18.3.0
cisco	vedge-2000_firmware	< 18.3.0	18.3.0
cisco	vedge-5000_firmware	< 18.3.0	18.3.0
cisco	vedge_100b_firmware	< 18.3.0	18.3.0
cisco	vedge_100m_firmware	< 18.3.0	18.3.0
cisco	vedge_100wm_firmware	< 18.3.0	18.3.0

Detection & IOCsextracted from sources · hover to see the quote

commandrequest admin-tech↗

→Monitor CLI usage of the 'request admin-tech' command on Cisco SD-WAN devices for unexpected or modified arguments that could indicate path traversal or arbitrary file overwrite attempts. ↗
→Alert on privilege escalation to root user following execution of the 'request admin-tech' CLI command on affected Cisco SD-WAN devices. ↗

·Vulnerability affects Cisco SD-WAN Solution releases prior to 18.3.0 across multiple device types: vBond Orchestrator Software, vEdge 100/1000/2000/5000 Series Routers, vEdge Cloud Router Platform, vManage Network Management Software, and vSmart Controller Software. ↗
·There are no workarounds available; remediation requires upgrading to SD-WAN Release 18.3.0 or later. ↗
·Exploitation requires an authenticated attacker, reducing but not eliminating risk — insider threat or compromised credentials scenarios remain relevant. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C

vendor_cisco8.6HIGH

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