CVE-2020-4044 (GCVE-0-2020-4044)

Vulnerability from cvelistv5 – Published: 2020-06-30 15:55 – Updated: 2024-08-04 07:52
VLAI
Title
Local users can perform a buffer overflow attack against the xrdp-sesman service and then impersonate it
Summary
The xrdp-sesman service before version 0.9.13.1 can be crashed by connecting over port 3350 and supplying a malicious payload. Once the xrdp-sesman process is dead, an unprivileged attacker on the server could then proceed to start their own imposter sesman service listening on port 3350. This will allow them to capture any user credentials that are submitted to XRDP and approve or reject arbitrary login credentials. For xorgxrdp sessions in particular, this allows an unauthorized user to hijack an existing session. This is a buffer overflow attack, so there may be a risk of arbitrary code execution as well.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7993 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
neutrinolabs xrdp Affected: < 0.9.13.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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}



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