High severity · published Sep 23, 2021
CVE-2021-1612
A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to overwrite arbitrary files on the local system
7.1
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to overwrite arbitrary files on the local system. This vulnerability is due to improper access controls on files within the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on an affected device.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SD
Sd-wan · Cisco
before 17.3.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-1612
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-1612
Patch
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-GjR5pGOm
More from Sd-wan
7.8
CVE-2022-20775
Cisco SD-WAN Software Privilege Escalation Vulnerability
9.9
CVE-2020-3374
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization, enabling them to…
9.8
CVE-2020-3375
A vulnerability in Cisco SD-WAN Solution Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device
9.8
CVE-2018-15387
A vulnerability in the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass certificate validation on an affected device
8.8
CVE-2019-1624
A vulnerability in the vManage web-based UI (Web UI) in the Cisco SD-WAN Solution could allow an authenticated, remote attacker to inject arbitrary commands that are executed with…