// For flags

CVE-2021-42727

Adobe Bridge Buffer Overflow Arbitrary code execution

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Adobe Bridge 11.1.1 (and earlier) is affected by a stack overflow vulnerability due to insecure handling of a crafted file, potentially resulting in arbitrary code execution in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted file in Bridge.

Adobe Bridge versión 11.1.1 (y anteriores) está afectado por una vulnerabilidad de desbordamiento de pila debido a la gestión insegura de un archivo manipulado, lo que puede dar lugar a la ejecución de código arbitrario en el contexto del usuario actual. La explotación requiere la interacción del usuario, ya que la víctima debe abrir un archivo manipulado en Bridge

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe RoboHelp Server. Authentication is required to exploit this vulnerability.
The specific flaw exists within the RoboHelp server. When parsing the fileName parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

*Credits: Dusan Stevanovic
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-10-19 CVE Reserved
  • 2021-11-11 CVE Published
  • 2024-09-17 CVE Updated
  • 2024-10-28 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://helpx.adobe.com/security/products/bridge/apsb21-94.html 2022-07-21
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Adobe
Search vendor "Adobe"
 Robohelp Server
Search vendor "Adobe" for product "Robohelp Server"
 <= 2020.0.1
Search vendor "Adobe" for product "Robohelp Server" and version " <= 2020.0.1"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe