SoftEther VPN 5.02 vpnserver ConnectionAccept resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in SoftEther VPN 5.02. Affected by this vulnerability is the function ConnectionAccept of the component vpnserver. Executing a manipulation can lead to resource consumption. The identification of this vulnerability is CVE-2023-25774. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in SoftEther VPN 5.02 (Network Encryption Software). It has been declared as critical. This vulnerability affects the function ConnectionAccept of the component vpnserver. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

A denial-of-service vulnerability exists in the vpnserver ConnectionAccept() functionality of SoftEther VPN 5.02. A set of specially crafted network connections can lead to denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

The weakness was shared 10/12/2023 as TALOS-2023-1743. The advisory is shared for download at talosintelligence.com. This vulnerability was named CVE-2023-25774 since 04/14/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

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

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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

04/14/2023 🔍
10/12/2023 +181 days 🔍
10/12/2023 +0 days 🔍
10/12/2023 +0 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1743
Status: Not defined

CVE: CVE-2023-25774 (🔍)
GCVE (CVE): GCVE-0-2023-25774
GCVE (VulDB): GCVE-100-242044

Entryinfo

Created: 10/12/2023 18:29
Changes: 10/12/2023 18:29 (51)
Complete: 🔍
Cache ID: 216::103

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