SB2023071026 - Multiple vulnerabilities in Mastodon

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Main Vulnerability Database SB2023071026

SB2023071026 - Multiple vulnerabilities in Mastodon

Published: July 10, 2023

Security Bulletin ID SB2023071026
Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 75% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Cross-site scripting (CVE-ID: CVE-2023-36459)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the oEmbed preview cards. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


2) Path traversal (CVE-ID: CVE-2023-36460)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and create and overwrite arbitrary files on the system.


3) Input validation error (CVE-ID: CVE-2023-36461)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to slow HTTP responses. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


4) Input validation error (CVE-ID: CVE-2023-36462)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can craft a verified profile link using specific formatting to conceal arbitrary parts of the link, enabling it to appear to link to a different URL altogether.


Remediation

Install update from vendor's website.

References