cloudflared up to 2023.3.0 on Windows link following

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in cloudflared up to 2023.3.0 on Windows. Affected by this vulnerability is an unknown functionality. The manipulation results in link following. This vulnerability is identified as CVE-2023-1314. The attack is only possible with local access. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in cloudflared up to 2023.3.0 on Windows (Cloud Software). It has been classified as critical. Affected is an unknown functionality. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on integrity, and availability. CVE summarizes:

A vulnerability has been discovered in cloudflared's installer (<= 2023.3.0) for Windows 32-bits devices that allows a local attacker with no administrative permissions to escalate their privileges on the affected device. This vulnerability exists because the MSI installer used by cloudflared relied on a world-writable directory. An attacker with local access to the device (without Administrator rights) can use symbolic links to trick the MSI installer into deleting files in locations that the attacker would otherwise have no access to. By creating a symlink from the world-writable directory to the target file, the attacker can manipulate the MSI installer's repair functionality to delete the target file during the repair process. Exploitation of this vulnerability could allow an attacker to delete important system files or replace them with malicious files, potentially leading to the affected device being compromised. The cloudflared client itself is not affected by this vulnerability, only the installer for 32-bit Windows devices.

The weakness was released 03/21/2023 as GHSA-7mjv-x3jf-545x. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-1314 since 03/10/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version 2023.3.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.5
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: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: cloudflared 2023.3.1

Timelineinfo

03/10/2023 🔍
03/21/2023 +11 days 🔍
03/21/2023 +0 days 🔍
04/12/2023 +22 days 🔍

Sourcesinfo

Advisory: GHSA-7mjv-x3jf-545x
Status: Confirmed

CVE: CVE-2023-1314 (🔍)
GCVE (CVE): GCVE-0-2023-1314
GCVE (VulDB): GCVE-100-223476

Entryinfo

Created: 03/21/2023 13:58
Updated: 04/12/2023 10:07
Changes: 03/21/2023 13:58 (52), 04/12/2023 10:07 (11)
Complete: 🔍
Cache ID: 216::103

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