VDB-198785 · CVE-2022-29799 · GCVE-0-2022-29799

Linux Kernel systemd /etc/networkd-dispatcher Nimbuspwn pathname traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel. This issue affects some unknown processing of the file /etc/networkd-dispatcher of the component systemd. The manipulation leads to pathname traversal. This vulnerability is referenced as CVE-2022-29799. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel (Operating System) (version now known). This issue affects some unknown processing of the file /etc/networkd-dispatcher of the component systemd. The manipulation with an unknown input leads to a pathname traversal vulnerability. Using CWE to declare the problem leads to CWE-21. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability was found in networkd-dispatcher. This flaw exists because no functions are sanitized by the OperationalState or the AdministrativeState of networkd-dispatcher. This attack leads to a directory traversal to escape from the “/etc/networkd-dispatcher” base directory.

The weakness was published 05/02/2022. The advisory is shared at microsoft.com. The identification of this vulnerability is CVE-2022-29799. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is available at microsoft.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Pathname traversal
CWE: CWE-21 / CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/25/2022 🔍
05/02/2022 +7 days 🔍
05/02/2022 +0 days 🔍
05/28/2025 +1121 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: microsoft.com
Status: Not defined

CVE: CVE-2022-29799 (🔍)
GCVE (CVE): GCVE-0-2022-29799
GCVE (VulDB): GCVE-100-198785
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/02/2022 13:12
Updated: 05/28/2025 00:15
Changes: 05/02/2022 13:12 (40), 05/02/2022 13:13 (1), 05/04/2022 18:17 (1), 05/28/2025 00:15 (27)
Complete: 🔍
Cache ID: 216::103