Home/CVE/When curl is instructed to get content using the metalink feature, and a user name and password are used to download the
CVE

CVE-2021-22923

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the

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.

MEDIUM · CVSS 5.3 EPSS 0.00068
Schedule remediation
  • Public exploit or PoC is available
Sigma rules7 YARA rules0
⬡

Weakness Classification

CWE-319Cleartext Transmission of Sensitive Information
CWE-319Cleartext Transmission of Sensitive Information
CWE-522Insufficiently Protected Credentials
▤

Affected Products & Versions

19
haxx curl>= 7.27.0 and < 7.78.0
fedoraproject fedoraall versions
netapp cloud backupall versions
netapp clustered data ontapall versions
netapp hci management nodeall versions
netapp solidfireall versions
oracle mysql server>= 5.7.0 and <= 5.7.35
oracle mysql server>= 8.0.0 and <= 8.0.26
⚠

Public Exploits & PoCs

1
pochackerone.com · 1213181hackerone.com
◈

Sigma Hunt Rules

7
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Download and Execute Pattern via Curl/Wget
producthighSuspicious File Download From File Sharing Domain Via Curl.EXE
producthighSuspicious File Download From IP Via Curl.EXE
producthighCurl Download And Execute Combination
producthighSuspicious Curl.EXE Download
productmediumSuspicious Curl File Upload - Linux
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Aug 2021 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

16
suse-csafopenSUSE-SU-2024:12116-1
siemens-csafSSA-398330
siemens-csafSSA-389290
rhsaRHSA-2021:3903Moderate
rhsaRHSA-2021:3582Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0003/Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
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