CVE-2018-0350

published 2018-07-18

CVE-2018-0350: A vulnerability in the VPN subsystem configuration in the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject arbitrary commands that…

Priority P2 61 high 8.8 CVSS 3.0

AV N AC L PR L UI N S U C H I H A H

A vulnerability in the VPN subsystem configuration in the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the affected parameter in a web page. The attacker must be authenticated to access the affected parameter. A successful exploit could allow the attacker to execute commands with root privileges. 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: CSCvi69808, CSCvi69810, CSCvi69814, CSCvi69822, CSCvi69827, CSCvi69828, CSCvi69836.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
cisco	sd-wan_solution_vpn_subsystem	—	—
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 & IOCs extracted from sources · hover to see the quote

• → The attack vector is authenticated web-based command injection via a crafted input to a VPN subsystem configuration parameter in the SD-WAN web interface. Monitor for unexpected root-privilege process execution originating from the SD-WAN web service process. ↗
• → Injected commands are executed with root privileges. Alert on any shell or OS commands spawned as root from the SD-WAN VPN subsystem configuration component. ↗
• → Affected products include vBond Orchestrator, vEdge 100/1000/2000/5000 Series Routers, vEdge Cloud Router Platform, vManage NMS, and vSmart Controller running Cisco SD-WAN Solution releases prior to 18.3.0. Prioritize detection on these platforms. ↗

• · Exploitation requires prior authentication to the device; unauthenticated exploitation is not possible. Detection should focus on authenticated sessions submitting anomalous input to VPN subsystem configuration pages. ↗
• · No workarounds are available; the only remediation is upgrading to Cisco SD-WAN Solution Release 18.3.0 or later. Detection controls are the primary mitigation until patching is complete. ↗
• · Multiple Cisco Bug IDs are associated with this CVE across different affected products (CSCvi69808, CSCvi69810, CSCvi69814, CSCvi69822, CSCvi69827, CSCvi69828, CSCvi69836), indicating the vulnerable code path exists in several distinct SD-WAN components. ↗

CVSS provenance

nvd v3.0 8.8 HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 9.0 CRITICAL AV:N/AC:L/Au:S/C:C/I:C/A:C

vendor_cisco 7.2 HIGH

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