CVE-2021-3907 - CVE House
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Status published High CVE-2021-3907

Arbitrary filepath traversal via URI injection

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Koen van Hove

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Affected Vendor

Affected Software

octorpki
Vulnerable Versions:
unspecified

Timeline

Official Publish: November 11th, 2021
Last Modified: September 17th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Weaknesses (CWE)

CWE-20 CWE-22

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1565.001 Stored Data Manipulation
Impact