Vulnerability · Published Jan 26, 2021 · Assigned by apache

CVE-2020-17522

Medium 5.8

In plain English

A medium-severity security flaw in Apache Traffic Control. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.0% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.8Medium

Exploit odds (30 days)4.0%top 9.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/apache/trafficcontrol	5.0.0	GHSA-pw59-4qgf-jxr8

Affected products (as reported)

Vendor	Product	Versions
n/a	Apache Traffic Control	Traffic Control 3.0.0 to 3.1.0, 4.0.0 to 4.1.0

References

https://lists.apache.org/thread.html/r3de212a3da73bcf98fa2db7eafb75b2eb8e131ff466e6efc4284df09%40%3Cdev.trafficcontrol.apache.org%3E x_refsource_MISC
[trafficcontrol-commits] 20210616 [trafficcontrol-website] branch asf-site updated: Fix CVE-2020-17522 link mailing-list, x_refsource_MLIST
[trafficcontrol-commits] 20211011 [trafficcontrol-website] 01/02: Add CVE-2021-42009 mailing-list, x_refsource_MLIST