RCE in Cisco 1120
CVE-2020-3205
A vulnerability in the implementation of the inter-VM channel of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, adjacent attacker to execute arbitrary shell commands on the Virtual Device Server (VDS) of an affected device. The vulnerability is due to insufficient validation of signaling packets that are destined to VDS. An attacker could exploit this vulnerability by sending malicious packets to an affected device. A successful exploit could allow the attacker to execute arbitrary commands in the context of the Linux shell of VDS with the privileges of the root user. Because the device is designed on a hypervisor architecture, exploitation of a vulnerability that affects the inter-VM channel may lead to a complete system compromise. For more information about this vulnerability, see the Details section of this advisory.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 63rd percentile — 62.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Cisco 1120
- Cisco 1240
- Cisco 809
- Cisco 829
- Cisco iOS 12.2(60)ez16
- Cisco iOS — versions 15.6(3)m1b, 15.4\(3\)m5, 15.0(2)sg11a
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-… (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3205?
- CVE-2020-3205 is a high-severity vulnerability in Cisco 1120, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2020-06-03.
- How severe is CVE-2020-3205?
- High severity. CVSS v3 base score is 8.8 out of 10.