What’s Vulnerable › Vulnerabilities
CVE-2021-22923
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.0% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2021-08-05 · updated 2026-10-14
- Weakness: CWE-319
Description
When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.
Affected products
- Fedoraproject Fedora: 33
- curl: from 7.27.0 before 7.78.0 — fixed in 7.78.0
- NetApp Cloud Backup: all versions
- Clustered Data ONTAP: all versions
- NetApp H300E Firmware: all versions
- NetApp H300S Firmware: all versions
- NetApp H410S Firmware: all versions
- NetApp H500E Firmware: all versions
- NetApp H500S Firmware: all versions
- NetApp H700E Firmware: all versions
- NetApp H700S Firmware: all versions
- NetApp Hci Management Node: all versions
- NetApp Solidfire: all versions
- MySQL Server: from 5.7.0 through 5.7.35; from 8.0.0 through 8.0.26
- Siemens Sinec Infrastructure Network Services: before 1.0.1.1 — fixed in 1.0.1.1
- Splunk Universal Forwarder: from 8.2.0 before 8.2.12; from 9.0.0 before 9.0.6; 9.1.0 — fixed in 8.2.12, 9.0.6
How to fix
Upgrade to a fixed version: curl 7.78.0; Siemens Sinec Infrastructure Network Services 1.0.1.1; Splunk Universal Forwarder 8.2.12, 9.0.6. Check the vendor advisory for mitigations.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1213181
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
- https://security.gentoo.org/glsa/202212-01
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1213181
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
- https://security.gentoo.org/glsa/202212-01
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://www.oracle.com/security-alerts/cpuoct2021.html
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