Path Traversal in Zevenet Zen Load Balancer
CVE-2020-11491
Monitoring::Logs in Zen Load Balancer 3.10.1 allows remote authenticated admins to conduct absolute path traversal attacks, as demonstrated by a filelog=/etc/shadow request to index.cgi.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.079 (94.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.079 · newest: 0.079 · change: 0.000
Affected products
- Zevenet Zen Load Balancer — versions 3.10.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.html (Exploit, Third Party Advisory)
- github.com/c610/tmp/blob/master/zenload4patreons.zip (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11491?
- CVE-2020-11491 is a medium-severity vulnerability in Zevenet Zen Load Balancer, classified under Path Traversal. CVSS score: 4.9/10. Published 2020-04-02.
- How severe is CVE-2020-11491?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2020-11491 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.