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Privileged Remote Access CVE-2023-4310

CRITICAL
Command Injection (CWE-77)
2023-09-05 9119a7d8-5eab-497f-8521-727c672e3725
Command Injection Privileged Remote Access Remote Support Beyondtrust
9.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-77
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could inject arbitrary commands into system command execution by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 1.4% exploitation probability (EPSS)

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AnalysisAI

BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be exploited through a malicious HTTP request. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be exploited through a malicious HTTP request. Successful exploitation of this vulnerability can allow an unauthenticated remote attacker to execute underlying operating system commands within the context of the site user. This issue is fixed in version 23.2.3. Affected products include: Beyondtrust Privileged Remote Access, Beyondtrust Remote Support. Version information: version 23.2.3..

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be exploited through a malicious HTTP request. Successful exploitation of this vulnerability can allow an unauthenticated remote attacker to execute underlying operating system commands within the context of the site user. This issue is fixed in version 23.2.3.

Threat Intelligence Overview

EPSS Score
1.4%
Top 31% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 1.4%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:a:beyondtrust:privileged_remote_access:23.2.1:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:privileged_remote_access:23.2.2:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:remote_support:23.2.1:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:remote_support:23.2.2:*:*:*:*:*:*:*

More in Privileged Remote Access

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CVE-2026-1731 CRITICAL POC
9.8 Feb 06

BeyondTrust Remote Support (RS) and older versions of Privileged Remote Access (PRA) contain a critical pre-authenticati
CVE-2024-12356 CRITICAL POC
9.8 Dec 17

A critical vulnerability has been discovered in Privileged Remote Access (PRA) and Remote Support (RS) products which ca
CVE-2025-5309 CRITICAL
9.8 Jun 16

Server-Side Template Injection (SSTI) vulnerability in the chat feature of Citrix Remote Support (RS) and Privileged Rem
CVE-2026-40139 CRITICAL
9.2 Jul 06

Authentication bypass in BeyondTrust Remote Support (and the related Privileged Remote Access product) lets an unauthent
CVE-2026-40138 CRITICAL POC
9.2 Jul 06

Pre-authentication access-control bypass in BeyondTrust Remote Support and Privileged Remote Access appliances lets a ne
CVE-2026-40140 HIGH
8.7 Jul 06

Denial-of-service in BeyondTrust Remote Support and Privileged Remote Access appliances lets an unauthenticated remote a
CVE-2023-23632 HIGH
7.8 Oct 12

BeyondTrust Privileged Remote Access (PRA) versions 22.2.x to 22.4.x are vulnerable to a local authentication bypass. Ra
CVE-2025-0217 HIGH
7.3 May 05

BeyondTrust Privileged Remote Access (PRA) versions prior to 25.1 are vulnerable to a local authentication bypass. Rated
CVE-2024-12686 HIGH
7.2 Dec 18

A vulnerability has been discovered in Privileged Remote Access (PRA) and Remote Support (RS) which can allow an attacke

Same weakness CWE-77 – Command Injection

View all
CVE-2024-21887 CRITICAL POC
9.1
CVE-2016-3081 HIGH POC
8.1
CVE-2012-1823 CRITICAL POC
9.8
CVE-2016-1555 CRITICAL POC
9.8
CVE-2024-55956 CRITICAL POC
9.8
CVE-2015-2051 HIGH POC
8.8
CVE-2017-6327 HIGH POC
8.8
CVE-2023-34960 CRITICAL POC
9.8

Same technique Command Injection

View all
CVE-2019-15107 CRITICAL POC
9.8
CVE-2024-51378 CRITICAL POC
9.8
CVE-2014-6271 CRITICAL POC
9.8

References

Advisories & patches
REF https://beyondtrustcorp.service-now.com/csm?id=kb_article_view&sysparm_article=KB0020207 REF https://www.beyondtrust.com/blog/entry/security-update-for-remote-support-and-privileged-remote-access

Search Externally

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