EFS Easy Chat Server 3.1 GET Request register.ghp Username memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in EFS Easy Chat Server 3.1. It has been declared as critical. Impacted is an unknown function of the file register.ghp of the component GET Request Handler. Such manipulation of the argument Username leads to memory corruption. This vulnerability is listed as CVE-2023-4494. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in EFS Easy Chat Server 3.1 (Chat Software) and classified as critical. Affected by this issue is some unknown processing of the file register.ghp of the component GET Request Handler. The manipulation of the argument username with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version. An attacker could send an excessively long username string to the register.ghp file asking for the name via a GET request resulting in arbitrary code execution on the remote machine.

The weakness was presented 10/04/2023. The advisory is shared for download at incibe.es. This vulnerability is handled as CVE-2023-4494 since 08/23/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/04/2023).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: 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

08/23/2023 🔍
10/04/2023 +42 days 🔍
10/04/2023 +0 days 🔍
10/04/2023 +0 days 🔍

Sourcesinfo

Advisory: incibe.es
Status: Not defined

CVE: CVE-2023-4494 (🔍)
GCVE (CVE): GCVE-0-2023-4494
GCVE (VulDB): GCVE-100-241268

Entryinfo

Created: 10/04/2023 17:10
Changes: 10/04/2023 17:10 (50)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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