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Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CVE-2023-6004

Medium
4.8/10

Summary

A flaw was found in libssh. By utilizing the "ProxyCommand" or "ProxyJump" feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the "hostname" parameter. This issue affects the package libssh versions 0.8.0 through 0.9.7, and 0.10.0 through 0.10.5.

  • LOW
  • LOCAL
  • LOW
  • UNCHANGED
  • REQUIRED
  • LOW
  • LOW
  • LOW

CWE-74 - Injection

Listed as the number one web application security risk on the 'OWASP Top Ten', injection attacks are widespread and dangerous, especially in legacy applications. Injection attacks are a class of vulnerabilities in which an attacker injects untrusted data into a web application that gets processed by an interpreter, altering the program's execution. This can result in data loss/theft, loss of data integrity, denial of service, and even compromising the entire system.

References

Advisory Timeline

  • Published