Multiple vulnerabilities in Cisco SD-WAN, Cisco IOS XE SD-WAN and Cisco IOS XE

Published: 2021-01-21

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-1300 CVE-2021-1301
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cisco SD-WAN Client/Desktop applications / Virtualization software Cisco IOS XE SD-WAN Other software / Other software solutions Cisco SD-WAN vBond Orchestrator Other software / Other software solutions Cisco SD-WAN vManage Other software / Other software solutions Cisco IOS XE Operating systems & Components / Operating system 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
Vendor	Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU49898

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1300

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to incorrect handling of IP traffic. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco SD-WAN: 18.3.0 - 20.4.0

Cisco IOS XE SD-WAN: 16.9 - 16.12

Cisco IOS XE: 17.2 - 17.4

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

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-bufovulns-B5NrSHbj

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU49899

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1301