Cloudflare OctoRPKI Cache Folder path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Cloudflare OctoRPKI. This vulnerability affects unknown code of the component Cache Folder Handler. The manipulation leads to path traversal. This vulnerability is listed as CVE-2021-3907. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cloudflare OctoRPKI (Cloud Software) (version now known). This issue affects some unknown processing of the component Cache Folder Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. Impacted is confidentiality, integrity, and availability.

The weakness was presented 11/12/2021 as GHSA-cqh2-vc2f-q4fh. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-3907 since 10/26/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 270268 (Linux Distros Unpatched Vulnerability : CVE-2021-3907), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (270268). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (Cloudflare, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-23 / CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 270268
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-3907

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/26/2021 🔍
11/12/2021 +17 days 🔍
11/12/2021 +0 days 🔍
10/19/2025 +1437 days 🔍

Sourcesinfo

Advisory: GHSA-cqh2-vc2f-q4fh
Status: Confirmed

CVE: CVE-2021-3907 (🔍)
GCVE (CVE): GCVE-0-2021-3907
GCVE (VulDB): GCVE-100-186563

Entryinfo

Created: 11/12/2021 07:52
Updated: 10/19/2025 05:33
Changes: 11/12/2021 07:52 (48), 11/16/2021 09:23 (1), 10/19/2025 05:33 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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