High severity · published Oct 21, 2021
CVE-2021-1529
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
IOS XE · Cisco
16.12 through 17.0; 17.2 before 17.2.3; 17.3 before 17.3.4; 17.4 before 17.4.2; 17.5 before 17.5.1a; 17.6.0 · source: NVD
IX
Ios XE Sd-wan · Cisco
17.2.1r and later · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-1529
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-1529
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-rhpbE34A
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