// For flags

CVE-2024-41909

Apache MINA SSHD: integrity check bypass

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Like many other SSH implementations, Apache MINA SSHD suffered from the issue that is more widely known as CVE-2023-48795. An attacker that can intercept traffic between client and server could drop certain packets from the stream, potentially causing client and server to consequently end up with a connection for which
some security features have been downgraded or disabled, aka a Terrapin
attack

The mitigations to prevent this type of attack were implemented in Apache MINA SSHD 2.12.0, both client and server side. Users are recommended to upgrade to at least this version. Note that both the client and the server implementation must have mitigations applied against this issue, otherwise the connection may still be affected.

A flaw was found in Apache MINA SSHD. This flaw allows an attacker who can intercept traffic between the client and server to drop certain packets from the stream. This potentially causes a Terrapin attack where the client and server consequently end up with a connection for which some security features have been downgraded or disabled.

*Credits: Fabian Bäumer
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-07-23 CVE Reserved
  • 2024-08-12 CVE Published
  • 2024-08-31 EPSS Updated
  • 2024-09-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-354: Improper Validation of Integrity Check Value
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache Software Foundation
Search vendor "Apache Software Foundation"
 Apache MINA SSHD
Search vendor "Apache Software Foundation" for product "Apache MINA SSHD"
 <= 2.11.0
Search vendor "Apache Software Foundation" for product "Apache MINA SSHD" and version " <= 2.11.0"
en
Affected