Information disclosure in Cisco IOS and IOS XE Software



Published: 2020-10-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-3477
CWE ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Cisco IOS
Operating systems & Components / Operating system

Cisco IOS XE
Operating systems & Components / Operating system

Vendor Cisco Systems, Inc

Security Advisory

This security advisory describes one low risk vulnerability.

1) Information disclosure

Risk: Low

CVSSv3: 4.8 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-3477

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to insufficient application of restrictions during the execution of a specific command in the CLI parser. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco IOS: Denali-16.3.11

Cisco IOS XE: Denali-16.3.11

CPE External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-info-disclosure-V4BmJBNF

Q & A

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.