Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-1619 |
CWE-ID | CWE-824 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco IOS XE Operating systems & Components / Operating system Cisco Catalyst 4000 Series Switches Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco 2800 Series Integrated Services Routers Hardware solutions / Routers & switches, VoIP, GSM, etc |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU56836
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-2021-1619
CWE-ID:
CWE-824 - Access of Uninitialized Pointer
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an uninitialized pointer in the authentication, authorization, and accounting (AAA) function. A remote attacker can send a series of NETCONF or RESTCONF requests and use NETCONF or RESTCONF to install, manipulate, or delete the configuration of a network device
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco IOS XE: 16.12.3 - 17.3.1
Cisco Catalyst 4000 Series Switches: All versions
Cisco 2800 Series Integrated Services Routers: All versions
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aaa-Yx47ZT8Q
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.