PT-2020-12642 · Zen · Zen Load Balancer

Code16 · Published 2020-04-02 · Updated 2020-04-06 · CVE-2020-11490

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Zen Load Balancer version 3.10.1

Description The issue allows remote authenticated admins to execute arbitrary OS commands via shell metacharacters in certain parameters. Specifically, the parameters cert issuer, cert division, cert organization, cert locality, cert state, cert country, or cert email in the index.cgi are vulnerable.

Recommendations For Zen Load Balancer version 3.10.1, consider restricting access to the index.cgi until a patch is available, and avoid using shell metacharacters in the cert issuer, cert division, cert organization, cert locality, cert state, cert country, or cert email parameters to minimize the risk of exploitation.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-11490

Affected Products

Zen Load Balancer

References · 4

• 🔥 https://github.com/c610/tmp/blob/master/zenload4patreons.zip · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-11490 · Security Note
• https://osv.dev/vulnerability/CVE-2020-11490 · Vendor Advisory
• http://code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.html · Note