EFS Easy Address Book Web Server 1.6 POST Request /searchbook.ghp Username memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in EFS Easy Address Book Web Server 1.6. It has been classified as critical. This issue affects some unknown processing of the file /searchbook.ghp of the component POST Request Handler. This manipulation of the argument Username causes memory corruption. This vulnerability is tracked as CVE-2023-4491. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in EFS Easy Address Book Web Server 1.6 (Web Server) and classified as critical. Affected by this vulnerability is an unknown code block of the file /searchbook.ghp of the component POST Request Handler. The manipulation of the argument username with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow vulnerability in Easy Address Book Web Server 1.6 version. The exploitation of this vulnerability could allow an attacker to send a very long username string to /searchbook.ghp, asking for the name via a POST request, resulting in arbitrary code execution on the remote machine.

The weakness was disclosed 10/04/2023. It is possible to read the advisory at incibe.es. This vulnerability is known as CVE-2023-4491 since 08/23/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (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.

Statistical analysis made it clear that VulDB provides the best quality 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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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-2023-4491 (🔍)
GCVE (CVE): GCVE-0-2023-4491
GCVE (VulDB): GCVE-100-241267

Entryinfo

Created: 10/04/2023 17:09
Changes: 10/04/2023 17:09 (49), 10/04/2023 17:10 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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