SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-22922

This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.

MEDIUM 6.5EPSS 4.33%

Does this matter?

Lower severity and a low EPSS score (4.33%). Track it; it rarely justifies an emergency change on its own.

Description

When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
4.33% probability · 91th percentile
CISA KEV
Not listed
Weakness
CWE-840, CWE-755
Affected
haxx/curl · fedoraproject/fedora · netapp/cloud backup · netapp/clustered data ontap · netapp/hci management node · netapp/solidfire · oracle/mysql server · siemens/sinec infrastructure network services · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h300e firmware · netapp/h500e firmware · netapp/h700e firmware · netapp/h410s firmware · splunk/universal forwarder
Source
support@hackerone.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.