1. Home
  2. CVE Database
  3. CVE-2021-3978
HIGH · 7.5

CVE-2021-3978

When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github...

Vulnerability Description

When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service ) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
CloudflareOctorpki< 1.4.2

Related Weaknesses (CWE)

CWE-269

References

FAQ

What is CVE-2021-3978?

CVE-2021-3978 is a vulnerability with a CVSS score of 7.5 (HIGH). When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github...

How severe is CVE-2021-3978?

CVE-2021-3978 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3978?

Check the references section above for vendor advisories and patch information. Affected products include: Cloudflare Octorpki.