CVE-2021-3907 Arbitrary filepath traversal via URI injection

2021-11-0100:00:00

CWE-20

CWE-22

cloudflare

www.cve.org

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

9.9 High

AI Score

Confidence

High

0.064 Low

EPSS

Percentile

93.7%

JSON

OctoRPKI does not escape a URI with a filename containing “…”, this allows a repository to create a file, (ex. rsync://example.org/repo/…/…/etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.

CNA Affected

[
  {
    "product": "octorpki",
    "vendor": "Cloudflare",
    "versions": [
      {
        "lessThan": "1.4.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]