Vulnerability Monitor

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CVE-2020-3234


A vulnerability in the virtual console authentication 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 authenticated but low-privileged, local attacker to log in to the Virtual Device Server (VDS) of an affected device by using a set of default credentials. The vulnerability is due to the presence of weak, hard-coded credentials. An attacker could exploit this vulnerability by authenticating to the targeted device and then connecting to VDS through the device’s virtual console by using the static credentials. A successful exploit could allow the attacker to access the Linux shell of VDS as the root user.


Published

2020-06-03T18:15:21.370

Last Modified

2024-11-21T05:30:37.450

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-798
  • Type: Primary
    CWE-798

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios 12.2\(60\)ez16 Yes
Operating System cisco ios 15.0\(2\)sg11a Yes
Operating System cisco ios 15.3\(3\)jaa1 Yes
Operating System cisco ios 15.3\(3\)jpj Yes
Operating System cisco ios 15.4\(1\)cg Yes
Operating System cisco ios 15.4\(2\)cg Yes
Operating System cisco ios 15.4\(3\)m Yes
Operating System cisco ios 15.4\(3\)m1 Yes
Operating System cisco ios 15.4\(3\)m2 Yes
Operating System cisco ios 15.4\(3\)m3 Yes
Operating System cisco ios 15.4\(3\)m4 Yes
Operating System cisco ios 15.4\(3\)m5 Yes
Operating System cisco ios 15.4\(3\)m6 Yes
Operating System cisco ios 15.4\(3\)m6a Yes
Operating System cisco ios 15.4\(3\)m7 Yes
Operating System cisco ios 15.4\(3\)m8 Yes
Operating System cisco ios 15.4\(3\)m9 Yes
Operating System cisco ios 15.4\(3\)m10 Yes
Operating System cisco ios 15.5\(1\)t Yes
Operating System cisco ios 15.5\(1\)t2 Yes
Operating System cisco ios 15.5\(1\)t3 Yes
Operating System cisco ios 15.5\(1\)t4 Yes
Operating System cisco ios 15.5\(2\)t Yes
Operating System cisco ios 15.5\(2\)t1 Yes
Operating System cisco ios 15.5\(2\)t2 Yes
Operating System cisco ios 15.5\(2\)t3 Yes
Operating System cisco ios 15.5\(2\)t4 Yes
Operating System cisco ios 15.5\(3\)m Yes
Operating System cisco ios 15.5\(3\)m0a Yes
Operating System cisco ios 15.5\(3\)m1 Yes
Operating System cisco ios 15.5\(3\)m2 Yes
Operating System cisco ios 15.5\(3\)m2a Yes
Operating System cisco ios 15.5\(3\)m3 Yes
Operating System cisco ios 15.5\(3\)m4 Yes
Operating System cisco ios 15.5\(3\)m4a Yes
Operating System cisco ios 15.5\(3\)m5 Yes
Operating System cisco ios 15.5\(3\)m6 Yes
Operating System cisco ios 15.5\(3\)m6a Yes
Operating System cisco ios 15.5\(3\)m7 Yes
Operating System cisco ios 15.5\(3\)m8 Yes
Operating System cisco ios 15.5\(3\)m9 Yes
Operating System cisco ios 15.5\(3\)m10 Yes
Operating System cisco ios 15.5\(3\)m11 Yes
Operating System cisco ios 15.6\(1\)t Yes
Operating System cisco ios 15.6\(1\)t0a Yes
Operating System cisco ios 15.6\(1\)t1 Yes
Operating System cisco ios 15.6\(1\)t2 Yes
Operating System cisco ios 15.6\(1\)t3 Yes
Operating System cisco ios 15.6\(2\)t Yes
Operating System cisco ios 15.6\(2\)t1 Yes
Operating System cisco ios 15.6\(2\)t2 Yes
Operating System cisco ios 15.6\(2\)t3 Yes
Operating System cisco ios 15.6\(3\)m Yes
Operating System cisco ios 15.6\(3\)m0a Yes
Operating System cisco ios 15.6\(3\)m1 Yes
Operating System cisco ios 15.6\(3\)m1b Yes
Operating System cisco ios 15.6\(3\)m2 Yes
Operating System cisco ios 15.6\(3\)m3 Yes
Operating System cisco ios 15.6\(3\)m3a Yes
Operating System cisco ios 15.6\(3\)m4 Yes
Operating System cisco ios 15.6\(3\)m5 Yes
Operating System cisco ios 15.6\(3\)m6 Yes
Operating System cisco ios 15.6\(3\)m6a Yes
Operating System cisco ios 15.6\(3\)m6b Yes
Operating System cisco ios 15.6\(3\)m7 Yes
Operating System cisco ios 15.6\(3\)m8 Yes
Operating System cisco ios 15.6\(3\)m9 Yes
Operating System cisco ios 15.7\(3\)m Yes
Operating System cisco ios 15.7\(3\)m1 Yes
Operating System cisco ios 15.7\(3\)m2 Yes
Operating System cisco ios 15.7\(3\)m3 Yes
Operating System cisco ios 15.7\(3\)m4 Yes
Operating System cisco ios 15.7\(3\)m4a Yes
Operating System cisco ios 15.7\(3\)m4b Yes
Operating System cisco ios 15.7\(3\)m5 Yes
Operating System cisco ios 15.7\(3\)m6 Yes
Operating System cisco ios 15.7\(3\)m7 Yes
Operating System cisco ios 15.8\(3\)m Yes
Operating System cisco ios 15.8\(3\)m0a Yes
Operating System cisco ios 15.8\(3\)m1 Yes
Operating System cisco ios 15.8\(3\)m2 Yes
Operating System cisco ios 15.8\(3\)m2a Yes
Operating System cisco ios 15.8\(3\)m3 Yes
Operating System cisco ios 15.8\(3\)m3a Yes
Operating System cisco ios 15.8\(3\)m3b Yes
Operating System cisco ios 15.8\(3\)m4 Yes
Operating System cisco ios 15.8\(3\)m5 Yes
Hardware cisco 1120 - No
Hardware cisco 1240 * No
Hardware cisco 809 * No
Hardware cisco 829 * No

References