CVE-2021-34725: Cisco IOS XE SD-WAN Software Command Injection Vulnerability
First published: Thu Sep 23 2021(Updated: )
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root-level privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root-level privileges.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE SD-WAN | <=17.2.1r | |
| Cisco 1000 Integrated Services Router | ||
| Cisco 1100-4g\/6g Integrated Services Router | ||
| Cisco 1100-4p Integrated Services Router | ||
| Cisco 1100-8p Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 1101-4p Integrated Services Router | ||
| Cisco 1101 Integrated Services Router | ||
| Cisco 1109-2p Integrated Services Router | ||
| Cisco 1109-4p Integrated Services Router | ||
| Cisco 1109 Integrated Services Router | ||
| Cisco 1111x-8p Integrated Services Router | ||
| Cisco 1111x Integrated Services Router | ||
| Cisco 111x Integrated Services Router | ||
| Cisco 1120 Integrated Services Router | ||
| Cisco 1160 Integrated Services Router | ||
| Cisco 4000 Integrated Services Router | ||
| Cisco 422 Integrated Services Router | ||
| Cisco 4221 Integrated Services Router | ||
| Cisco 4321 Integrated Services Router | ||
| Cisco 4331 Integrated Services Router | ||
| Cisco 4351 Integrated Services Router | ||
| Cisco 4431 Integrated Services Router | ||
| Cisco 4451-x Integrated Services Router | ||
| Cisco 4451 Integrated Services Router | ||
| Cisco 4461 Integrated Services Router | ||
| Cisco ASR 1000 | ||
| Cisco Asr 1000-esp100 | ||
| Cisco Asr 1000-x | ||
| Cisco Asr 1000 Series | ||
| Cisco Asr 1000 Series Route Processor \(rp2\) | ||
| Cisco Asr 1000 Series Route Processor \(rp3\) | ||
| Cisco Asr 1001 | ||
| Cisco Asr 1001-hx | ||
| Cisco Asr 1001-hx R | ||
| Cisco Asr 1001-x | ||
| Cisco Asr 1001-x R | ||
| Cisco Asr 1002 | ||
| Cisco Asr 1002-hx | ||
| Cisco Asr 1002-hx R | ||
| Cisco Asr 1002-x | ||
| Cisco Asr 1002-x R | ||
| Cisco Asr 1004 | ||
| Cisco Asr 1006 | ||
| Cisco Asr 1006-x | ||
| Cisco Asr 1009-x | ||
| Cisco Asr 1013 | ||
| Cisco Asr 1023 | ||
| Cisco Csr 1000v |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-34725.
What is the severity of CVE-2021-34725?
The severity of CVE-2021-34725 is high, with a CVSS score of 6.7.
What is the affected software for CVE-2021-34725?
The affected software for CVE-2021-34725 is Cisco IOS XE SD-WAN Software version 17.2.1r.
What is the impact of CVE-2021-34725?
CVE-2021-34725 allows an authenticated, local attacker to inject arbitrary commands with root-level privileges on the underlying operating system.
Is there a fix available for CVE-2021-34725?
Yes, Cisco has released a security advisory with mitigation details for CVE-2021-34725. Please refer to the Cisco Security Advisory for more information.
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- vendor/cisco
- canonical/cisco ios xe sd-wan
- version/cisco ios xe sd-wan/17.2.1r
- canonical/cisco 1000 integrated services router
- canonical/cisco 1100-4g\/6g integrated services router
- canonical/cisco 1100-4p integrated services router
- canonical/cisco 1100-8p integrated services router
- canonical/cisco 1100 integrated services router
- canonical/cisco 1101-4p integrated services router
- canonical/cisco 1101 integrated services router
- canonical/cisco 1109-2p integrated services router
- canonical/cisco 1109-4p integrated services router
- canonical/cisco 1109 integrated services router
- canonical/cisco 1111x-8p integrated services router
- canonical/cisco 1111x integrated services router
- canonical/cisco 111x integrated services router
- canonical/cisco 1120 integrated services router
- canonical/cisco 1160 integrated services router
- canonical/cisco 4000 integrated services router
- canonical/cisco 422 integrated services router
- canonical/cisco 4221 integrated services router
- canonical/cisco 4321 integrated services router
- canonical/cisco 4331 integrated services router
- canonical/cisco 4351 integrated services router
- canonical/cisco 4431 integrated services router
- canonical/cisco 4451-x integrated services router
- canonical/cisco 4451 integrated services router
- canonical/cisco 4461 integrated services router
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- canonical/cisco asr 1000-esp100
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- canonical/cisco asr 1000 series
- canonical/cisco asr 1000 series route processor \(rp2\)
- canonical/cisco asr 1000 series route processor \(rp3\)
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- canonical/cisco asr 1023
- canonical/cisco csr 1000v