Cisco Secure Endpoint update for ClamAV



Published: 2023-02-15
Risk Critical
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-20032
CVE-2023-20052
CWE-ID CWE-122
CWE-611
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Secure Web Appliance
Other software / Other software solutions

Secure Endpoint Private Cloud
Client/Desktop applications / Antivirus software/Personal firewalls

Secure Endpoint for Windows
Client/Desktop applications / Antivirus software/Personal firewalls

Secure Endpoint for macOS
Client/Desktop applications / Antivirus software/Personal firewalls

Secure Endpoint for Linux
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU72297

Risk: Critical

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-2023-20032

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the HFS+ partition file parser. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

Secure Web Appliance: before 15.0.0-254

Secure Endpoint Private Cloud: before 3.6.0

Secure Endpoint for Windows: before 8.1.5

Secure Endpoint for macOS: before 1.21.1

Secure Endpoint for Linux: before 1.20.2

External links

http://bst.cisco.com/bugsearch/bug/CSCwd74134
http://bst.cisco.com/bugsearch/bug/CSCwd74135
http://bst.cisco.com/bugsearch/bug/CSCwe18204


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.

2) XML External Entity injection

EUVDB-ID: #VU72298

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20052

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to enabling XML entity substitution. A remote attacker can pass a specially crafted XML code to the antivirus and view bytes from any file that may be read by the ClamAV scanning process.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Secure Endpoint Private Cloud: before 3.6.0

Secure Endpoint for Windows: before 8.1.5

Secure Endpoint for macOS: before 1.21.1

Secure Endpoint for Linux: before 1.20.2

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhN
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87111
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87112
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87113
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18204


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.



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