What’s Vulnerable › Vulnerabilities

CVE-2020-1693

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-02-17 · updated 2026-06-17
• Weakness: CWE-611

Description

A flaw was found in Spacewalk up to version 2.9 where it was vulnerable to XML internal entity attacks via the /rpc/api endpoint. An unauthenticated remote attacker could use this flaw to retrieve the content of certain files and trigger a denial of service, or in certain circumstances, execute arbitrary code on the Spacewalk server.

Affected products

• spacewalkproject spacewalk: before 2.9 — fixed in 2.9

How to fix

Upgrade to a fixed version: spacewalkproject spacewalk 2.9. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1693
• https://github.com/spacewalkproject/spacewalk/commit/74e28ec61d916c42061ef4347121650a1c962b0c
• https://zeroauth.ltd/blog/2020/02/18/proof-of-concept-exploit-for-cve-2020-1693-spacewalk/
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1693
• https://github.com/spacewalkproject/spacewalk/commit/74e28ec61d916c42061ef4347121650a1c962b0c
• https://zeroauth.ltd/blog/2020/02/18/proof-of-concept-exploit-for-cve-2020-1693-spacewalk/

Get alerted when CVE-2020-1693 or the next vulnerability affects your stack