CVE-2023-27395

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to arbitrary code execution. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Existe una vulnerabilidad de desbordamiento de búfer en la funcionalidad vpnserver WpcParsePacket() de SoftEther VPN 4.41-9782-beta, 5.01.9674 y 5.02. Un paquete de red especialmente manipulado puede provocar la ejecución de código arbitrario. Un atacante puede realizar un ataque de intermediario para desencadenar esta vulnerabilidad.

*Credits: Discovered by Lilith >_> of Cisco Talos.

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-03-24 CVE Reserved
2023-10-12 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2024-11-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1735	2024-08-02

URL	Date	SRC
https://www.softether.org/9-about/News/904-SEVPN202301	2023-10-18

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Softether Search vendor "Softether"		Vpn Search vendor "Softether" for product "Vpn"				4.41-9782 Search vendor "Softether" for product "Vpn" and version "4.41-9782"		beta		Affected
Softether Search vendor "Softether"		Vpn Search vendor "Softether" for product "Vpn"				5.01.9674 Search vendor "Softether" for product "Vpn" and version "5.01.9674"		-		Affected
Softether Search vendor "Softether"		Vpn Search vendor "Softether" for product "Vpn"				5.02 Search vendor "Softether" for product "Vpn" and version "5.02"		-		Affected