Vulnerability in Apache Traffic Control
CVE-2020-17522
When ORT (now via atstccfg) generates ip_allow.config files in Apache Traffic Control 3.0.0 to 3.1.0 and 4.0.0 to 4.1.0, those files include permissions that allow bad actors to push arbitrary content into and remove arbitrary content from CDN cache servers. Additionally, these permissions are potentially extended to IP addresses outside the desired range, resulting in them being granted to clients possibly outside the CDN arcitechture.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.039 (90.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Apache Traffic Control
- Apache Traffic Control — versions Traffic Control 3.0.0 to 3.1.0, 4.0.0 to 4.1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r3de212a3da73bcf98fa2db7eafb75b2eb8e131ff466e6efc4… (Mailing List, Vendor Advisory)
- lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca… (mailing-list)
- lists.apache.org/thread.html/rc8bfd7d4f71d61e9193efcd4699eccbab3c202ec1d75ed9d5… (mailing-list)
Frequently asked questions
- What is CVE-2020-17522?
- CVE-2020-17522 is a medium-severity vulnerability in Apache Traffic Control, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.8/10. Published 2021-01-26.
- How severe is CVE-2020-17522?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2020-17522 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.