ZEN Load Balancer Filelog Command Execution
63Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 9.4epss 2.4%
from disclosure to weapon0 days
Published on NVDAug 11
metasploitSep 14
exploitation probability
2.4%top 18% of all CVEs
observed exploitation
nono source reports it
3 public exploit(s)
ZEN Load Balancer versions 2.0 and 3.0-rc1 contain a command injection vulnerability in content2-2.cgi. The filelog parameter is passed directly into a backtick-delimited exec() call without sanitation. An authenticated attacker can inject arbitrary shell commands, resulting in remote code execution as the root user. ZEN Load Balancer is the predecessor of ZEVENET and SKUDONET. The affected versions (2.0 and 3.0-rc1) are no longer supported. SKUDONET CE is the current community-maintained successor.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
ZEN Load Balancer · ZEN Load Balancerpublic PoCs found — 3
cve_referenceraw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/zen_load_balancer_exec.rbunverifiedcve_referenceweb.archive.org/web/20221203195056/https://itsecuritysolutions.org/2012-09-21-ZEN-Load-Balancer-v2.0-and-v3.0-rc1-multiple-vulnerabilities/unverifiedcve_referencewww.exploit-db.com/exploits/21849unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/http/zen_load_balancer_exec.rbhttps://web.archive.org/web/20111015031540/http://www.zenloadbalancer.com/https://web.archive.org/web/20221203195056/https://itsecuritysolutions.org/2012-09-21-ZEN-Load-Balancer-v2.0-and-v3.0-rc1-multiple-vulnerabilities/https://www.exploit-db.com/exploits/21849https://www.fortiguard.com/encyclopedia/ips/33335/zen-load-balancer-filelog-command-execution