VDB-215831 · CVE-2022-31358 · GCVE-0-2022-31358

Proxmox Virtual Environment prior 7.2-3 /api2/html/ cross site scripting

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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Proxmox Virtual Environment. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the file /api2/html/. The manipulation leads to cross site scripting. This vulnerability is documented as CVE-2022-31358. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Proxmox Virtual Environment. This issue affects an unknown function of the file /api2/html/. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

A reflected cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment prior to v7.2-3 allows remote attackers to execute arbitrary web scripts or HTML via non-existent endpoints under path /api2/html/.

The weakness was released 12/15/2022. It is possible to read the advisory at starlabs.sg. The identification of this vulnerability is CVE-2022-31358 since 05/23/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 7.2-3 eliminates this vulnerability. Applying the patch 00661f1223b7c0afffa64e1d91f5e018b985f762 is able to eliminate this problem. The bugfix is ready for download at git.proxmox.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Proxmox

Name

Virtual Environment

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
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: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: 🔍

Upgrade: Virtual Environment 7.2-3
Patch: 00661f1223b7c0afffa64e1d91f5e018b985f762

Timelineinfo

05/23/2022 🔍
12/14/2022 +205 days 🔍
12/15/2022 +0 days 🔍
01/12/2023 +28 days 🔍

Sourcesinfo

Advisory: starlabs.sg
Status: Confirmed

CVE: CVE-2022-31358 (🔍)
GCVE (CVE): GCVE-0-2022-31358
GCVE (VulDB): GCVE-100-215831

Entryinfo

Created: 12/15/2022 00:57
Updated: 01/12/2023 18:16
Changes: 12/15/2022 00:57 (41), 01/12/2023 18:16 (11)
Complete: 🔍
Cache ID: 216::103