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.
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Ios | Cisco | 12.2(60)ez16 (including) | 12.2(60)ez16 (including) |
Ios | Cisco | 15.0(2)sg11a (including) | 15.0(2)sg11a (including) |
Ios | Cisco | 15.2(4)jaz1 (including) | 15.2(4)jaz1 (including) |
Ios | Cisco | 15.3(3)jaa1 (including) | 15.3(3)jaa1 (including) |
Ios | Cisco | 15.3(3)jpi (including) | 15.3(3)jpi (including) |
Ios | Cisco | 15.3(3)jpj (including) | 15.3(3)jpj (including) |
Ios | Cisco | 15.4(1)cg (including) | 15.4(1)cg (including) |
Ios | Cisco | 15.4(2)cg (including) | 15.4(2)cg (including) |
Ios | Cisco | 15.4(3)m (including) | 15.4(3)m (including) |
Ios | Cisco | 15.4(3)m1 (including) | 15.4(3)m1 (including) |
Ios | Cisco | 15.4(3)m2 (including) | 15.4(3)m2 (including) |
Ios | Cisco | 15.4(3)m3 (including) | 15.4(3)m3 (including) |
Ios | Cisco | 15.4(3)m4 (including) | 15.4(3)m4 (including) |
Ios | Cisco | 15.4(3)m5 (including) | 15.4(3)m5 (including) |
Ios | Cisco | 15.4(3)m6 (including) | 15.4(3)m6 (including) |
Ios | Cisco | 15.4(3)m6a (including) | 15.4(3)m6a (including) |
Ios | Cisco | 15.4(3)m7 (including) | 15.4(3)m7 (including) |
Ios | Cisco | 15.4(3)m8 (including) | 15.4(3)m8 (including) |
Ios | Cisco | 15.4(3)m9 (including) | 15.4(3)m9 (including) |
Ios | Cisco | 15.4(3)m10 (including) | 15.4(3)m10 (including) |
Ios | Cisco | 15.5(1)t (including) | 15.5(1)t (including) |
Ios | Cisco | 15.5(1)t2 (including) | 15.5(1)t2 (including) |
Ios | Cisco | 15.5(1)t3 (including) | 15.5(1)t3 (including) |
Ios | Cisco | 15.5(1)t4 (including) | 15.5(1)t4 (including) |
Ios | Cisco | 15.5(2)t (including) | 15.5(2)t (including) |
Ios | Cisco | 15.5(2)t1 (including) | 15.5(2)t1 (including) |
Ios | Cisco | 15.5(2)t2 (including) | 15.5(2)t2 (including) |
Ios | Cisco | 15.5(2)t3 (including) | 15.5(2)t3 (including) |
Ios | Cisco | 15.5(2)t4 (including) | 15.5(2)t4 (including) |
Ios | Cisco | 15.5(3)m (including) | 15.5(3)m (including) |
Ios | Cisco | 15.5(3)m0a (including) | 15.5(3)m0a (including) |
Ios | Cisco | 15.5(3)m1 (including) | 15.5(3)m1 (including) |
Ios | Cisco | 15.5(3)m2 (including) | 15.5(3)m2 (including) |
Ios | Cisco | 15.5(3)m2a (including) | 15.5(3)m2a (including) |
Ios | Cisco | 15.5(3)m3 (including) | 15.5(3)m3 (including) |
Ios | Cisco | 15.5(3)m4 (including) | 15.5(3)m4 (including) |
Ios | Cisco | 15.5(3)m4a (including) | 15.5(3)m4a (including) |
Ios | Cisco | 15.5(3)m5 (including) | 15.5(3)m5 (including) |
Ios | Cisco | 15.5(3)m6 (including) | 15.5(3)m6 (including) |
Ios | Cisco | 15.5(3)m6a (including) | 15.5(3)m6a (including) |
Ios | Cisco | 15.5(3)m7 (including) | 15.5(3)m7 (including) |
Ios | Cisco | 15.5(3)m8 (including) | 15.5(3)m8 (including) |
Ios | Cisco | 15.5(3)m9 (including) | 15.5(3)m9 (including) |
Ios | Cisco | 15.5(3)m10 (including) | 15.5(3)m10 (including) |
Ios | Cisco | 15.5(3)m11 (including) | 15.5(3)m11 (including) |
Ios | Cisco | 15.6(1)t (including) | 15.6(1)t (including) |
Ios | Cisco | 15.6(1)t0a (including) | 15.6(1)t0a (including) |
Ios | Cisco | 15.6(1)t1 (including) | 15.6(1)t1 (including) |
Ios | Cisco | 15.6(1)t2 (including) | 15.6(1)t2 (including) |
Ios | Cisco | 15.6(1)t3 (including) | 15.6(1)t3 (including) |
Ios | Cisco | 15.6(2)t (including) | 15.6(2)t (including) |
Ios | Cisco | 15.6(2)t1 (including) | 15.6(2)t1 (including) |
Ios | Cisco | 15.6(2)t2 (including) | 15.6(2)t2 (including) |
Ios | Cisco | 15.6(2)t3 (including) | 15.6(2)t3 (including) |
Ios | Cisco | 15.6(3)m (including) | 15.6(3)m (including) |
Ios | Cisco | 15.6(3)m0a (including) | 15.6(3)m0a (including) |
Ios | Cisco | 15.6(3)m1 (including) | 15.6(3)m1 (including) |
Ios | Cisco | 15.6(3)m1b (including) | 15.6(3)m1b (including) |
Ios | Cisco | 15.6(3)m2 (including) | 15.6(3)m2 (including) |
Ios | Cisco | 15.6(3)m3 (including) | 15.6(3)m3 (including) |
Ios | Cisco | 15.6(3)m3a (including) | 15.6(3)m3a (including) |
Ios | Cisco | 15.6(3)m4 (including) | 15.6(3)m4 (including) |
Ios | Cisco | 15.6(3)m5 (including) | 15.6(3)m5 (including) |
Ios | Cisco | 15.6(3)m6 (including) | 15.6(3)m6 (including) |
Ios | Cisco | 15.6(3)m6a (including) | 15.6(3)m6a (including) |
Ios | Cisco | 15.6(3)m6b (including) | 15.6(3)m6b (including) |
Ios | Cisco | 15.6(3)m7 (including) | 15.6(3)m7 (including) |
Ios | Cisco | 15.6(3)m8 (including) | 15.6(3)m8 (including) |
Ios | Cisco | 15.6(3)m9 (including) | 15.6(3)m9 (including) |
Ios | Cisco | 15.7(3)m (including) | 15.7(3)m (including) |
Ios | Cisco | 15.7(3)m1 (including) | 15.7(3)m1 (including) |
Ios | Cisco | 15.7(3)m2 (including) | 15.7(3)m2 (including) |
Ios | Cisco | 15.7(3)m3 (including) | 15.7(3)m3 (including) |
Ios | Cisco | 15.7(3)m4 (including) | 15.7(3)m4 (including) |
Ios | Cisco | 15.7(3)m4a (including) | 15.7(3)m4a (including) |
Ios | Cisco | 15.7(3)m4b (including) | 15.7(3)m4b (including) |
Ios | Cisco | 15.7(3)m5 (including) | 15.7(3)m5 (including) |
Ios | Cisco | 15.7(3)m6 (including) | 15.7(3)m6 (including) |
Ios | Cisco | 15.7(3)m7 (including) | 15.7(3)m7 (including) |
Ios | Cisco | 15.8(3)m (including) | 15.8(3)m (including) |
Ios | Cisco | 15.8(3)m0a (including) | 15.8(3)m0a (including) |
Ios | Cisco | 15.8(3)m1 (including) | 15.8(3)m1 (including) |
Ios | Cisco | 15.8(3)m2 (including) | 15.8(3)m2 (including) |
Ios | Cisco | 15.8(3)m2a (including) | 15.8(3)m2a (including) |
Ios | Cisco | 15.8(3)m3 (including) | 15.8(3)m3 (including) |
Ios | Cisco | 15.8(3)m3a (including) | 15.8(3)m3a (including) |
Ios | Cisco | 15.8(3)m3b (including) | 15.8(3)m3b (including) |
Ios | Cisco | 15.8(3)m4 (including) | 15.8(3)m4 (including) |
Ios | Cisco | 15.8(3)m5 (including) | 15.8(3)m5 (including) |
Ios | Cisco | 15.9(3)m (including) | 15.9(3)m (including) |
Ios | Cisco | 15.9(3)m0a (including) | 15.9(3)m0a (including) |
This could allow attackers to execute unexpected, dangerous commands directly on the operating system. This weakness can lead to a vulnerability in environments in which the attacker does not have direct access to the operating system, such as in web applications. Alternately, if the weakness occurs in a privileged program, it could allow the attacker to specify commands that normally would not be accessible, or to call alternate commands with privileges that the attacker does not have. The problem is exacerbated if the compromised process does not follow the principle of least privilege, because the attacker-controlled commands may run with special system privileges that increases the amount of damage. There are at least two subtypes of OS command injection:
From a weakness standpoint, these variants represent distinct programmer errors. In the first variant, the programmer clearly intends that input from untrusted parties will be part of the arguments in the command to be executed. In the second variant, the programmer does not intend for the command to be accessible to any untrusted party, but the programmer probably has not accounted for alternate ways in which malicious attackers can provide input.