VDB-231319 · CVE-2023-29175 · FG-IR-22-468

FortiGuard FortiOS/FortiProxy certificate validation

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in FortiGuard FortiOS and FortiProxy. Affected by this vulnerability is an unknown functionality. This manipulation causes certificate validation. The identification of this vulnerability is CVE-2023-29175. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in FortiGuard FortiOS and FortiProxy (Firewall Software) (the affected version is unknown). Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FortiProxy 1.2 all versions, 2.0 all versions, 7.0.0 through 7.0.9, 7.2.0 through 7.2.3 may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the vulnerable device and the remote FortiGuard's map server.

The weakness was shared 06/13/2023 as FG-IR-22-468. It is possible to read the advisory at fortiguard.com. This vulnerability is known as CVE-2023-29175 since 04/03/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Firewall Software

Vendor

FortiGuard

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.8
CNA Vector (Fortinet, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/03/2023 🔍
06/13/2023 +71 days 🔍
06/13/2023 +0 days 🔍
06/13/2023 +0 days 🔍

Sourcesinfo

Advisory: FG-IR-22-468
Status: Confirmed

CNA: Fortinet, Inc.
CVE: CVE-2023-29175 (🔍)

GCVE (CVE): GCVE-0-2023-29175
GCVE (VulDB): GCVE-100-231319

Entryinfo

Created: 06/13/2023 15:00
Changes: 06/13/2023 15:00 (49)
Complete: 🔍
Cache ID: 216::103