Vulnerability identifier: #VU50014
Vulnerability risk: Low
CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-59
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Cisco SD-WAN vBond Orchestrator
Other software /
Other software solutions
Cisco SD-WAN vManage
Other software /
Other software solutions
Cisco SD-WAN vEdge Cloud Router
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Cisco SD-WAN vEdge Routers
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Cisco SD-WAN vSmart Controller
Hardware solutions /
Other hardware appliances
Cisco SD-WAN
Client/Desktop applications /
Virtualization software
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to the absence of validation checks for the input that is used to create symlinks. A local user can create a symlink to a target file on a specific path and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco SD-WAN vBond Orchestrator: All versions
Cisco SD-WAN vEdge Cloud Router: All versions
Cisco SD-WAN vEdge Routers: All versions
Cisco SD-WAN vManage: All versions
Cisco SD-WAN vSmart Controller: All versions
Cisco SD-WAN: 18.3.0 - 20.3.0
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-dosmulti-48jJuEUP
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.