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INCIBEVULNRICHMENT:CVE-2023-4494

HistoryOct 04, 2023 - 12:27 p.m.

CVE-2023-4494 Easy Chat Server Stack-based buffer overflow vulnerability

2023-10-0412:27:04

CWE-119

INCIBE

github.com

buffer overflow

easy chat server

arbitrary code execution

remote machine

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.1

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

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.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:efs_software:easy_chat_server:*:*:*:*:*:*:*:*"
    ],
    "vendor": "efs_software",
    "product": "easy_chat_server",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "3.1"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-products

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.1

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

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