Multiple vulnerabilities in Cisco Umbrella

Published: 2021-04-08

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE ID	CVE-2021-1474 CVE-2021-1475
CWE ID	CWE-94 CWE-74
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cisco Umbrella Client/Desktop applications / Other client software
Vendor

Security Advisory

1) CSV Injection

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1474

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to inject arbitrary code into CSV files.

The vulnerability exists due to improper neutralization of formula elements in the comma-separated value (CSV) file that is generated by the Admin audit log export feature. A remote authenticated attacker can inject arbitrary code into a CSV file.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Umbrella: before 1.2.0

CPE

cpe:2.3:a:cisco_systems:cisco_umbrella:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-inject-gbZGHP5T

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Link Injection

Risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1475

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')