Command Injection in Cisco IOS XE and IOS XE SD-WAN Software
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-34729 |
| CWE-ID | CWE-77 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco IOS XE SD-WAN Other software / Other software solutions Cisco IOS XE Operating systems & Components / Operating system |
| Vendor |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Command Injection
EUVDB-ID: #VU56863
Risk: Low
CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-34729
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a local user to execute arbitrary commands on the target system.
The vulnerability exists due to insufficient validation of arguments passed to certain CLI commands. A local administrator can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco IOS XE SD-WAN: before 17.6.1a
Cisco IOS XE: before 17.6.1a
External linksQ & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
