CVE-2020-11491
CVE-2020-11491 is a medium-severity vulnerability in Zevenet Zen Load Balancer with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 4.9)
- CVSS v2: 4.0
- EPSS exploit prediction: 8% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Zevenet Zen Load Balancer
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-11491?
- CVE-2020-11491 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-11491 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11491?
- CVE-2020-11491 affects Zevenet Zen Load Balancer. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-11491?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-11491 published?
- CVE-2020-11491 was published on 2020-04-02 and last updated on 2026-06-17.
References
- http://code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.html
- https://github.com/c610/tmp/blob/master/zenload4patreons.zip
Affected products (1)
- cpe:2.3:a:zevenet:zen_load_balancer:3.10.1:*:*:*:*:*:*:*
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