Detections
Analytics
Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Multiple Vulnerabilities (cisco-sa-ios-iot-gos-vuln-s9qS8kYL)
high Nessus Plugin ID 139037
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS Software is affected by multiple vulnerabilities in the IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000). Attackers can exploit these in order to cause a DoS condition or execute arbitrary code with elevated privileges on an affected device, as follows:- A local, low privileged attacker can execute arbitrary code in an affected system with high privileges due to incorrect bounds checking of certain type, length, value (TLV) fields of signaling packets that are exchanged between Cisco IOS Software and a Guest OS. This can be exploited by authenticating to the device by using low-privileged user credentials and then sending crafted packets, which when processed can create an exploitable buffer overflow condition. (CVE-2020-3257)
- An authenticated, adjacent attacker can cause a DoS condition due to a vulnerability in the ingress packet processing functionality of Cisco IOS Software due to insufficient isolation of an internal, emulated Ethernet interface. This can be exploited by sending malicious IP packets. (CVE-2020-3199)
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvr15042 and CSCvq68872See Also
http://www.nessus.org/u?575acf13
Plugin Details
Severity: High
ID: 139037
File Name: cisco-sa-ios-iot-gos-vuln-s9qS8kYL.nasl
Version: 1.12
Type: combined
Family: CISCO
Published: 7/28/2020
Updated: 6/3/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 8.3
Temporal Score: 6.1
Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-3199
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios
Required KB Items: Host/Cisco/IOS/Version, Host/Cisco/IOS/Model
Exploit Ease: No known exploits are available
Patch Publication Date: 6/3/2020
Vulnerability Publication Date: 6/3/2020
Reference Information
CVE: CVE-2020-3199, CVE-2020-3257