SoftEther Publish Confirm Message plugin 4.41-9782-beta/5.01.9674/5.02 vpnserver WpcParsePacket heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability was found in SoftEther Publish Confirm Message plugin 4.41-9782-beta/5.01.9674/5.02. It has been declared as critical. Impacted is the function WpcParsePacket of the component vpnserver. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2023-27395. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in SoftEther Publish Confirm Message plugin 4.41-9782-beta/5.01.9674/5.02. This vulnerability affects the function WpcParsePacket of the component vpnserver. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented 10/12/2023 as TALOS-2023-1735. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2023-27395 since 03/24/2023. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/31/2023).

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

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.1
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 9.0
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/24/2023 🔍
10/12/2023 +201 days 🔍
10/12/2023 +0 days 🔍
10/31/2023 +19 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1735
Status: Not defined

CVE: CVE-2023-27395 (🔍)
GCVE (CVE): GCVE-0-2023-27395
GCVE (VulDB): GCVE-100-242038

Entryinfo

Created: 10/12/2023 18:28
Updated: 10/31/2023 15:26
Changes: 10/12/2023 18:28 (50), 10/31/2023 15:26 (11)
Complete: 🔍
Cache ID: 216::103

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