CVE-2021-31439
Synology DiskStation Manager Netatalk Buffer Overflow
Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. Authentication is not required to exploit this vulnerablity. The specific flaw exists within the processing of DSI structures in Netatalk. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12326.
INFO
Published Date :
May 21, 2021, 3:15 p.m.
Last Modified :
Nov. 22, 2023, 8:34 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-31439 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-31439
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-31439.
| URL | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202311-02 | Issue Tracking Third Party Advisory |
| https://www.debian.org/security/2023/dsa-5503 | Third Party Advisory |
| https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26 | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-492/ | Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Some Vulnerability in the some protocol are collected.
vulnerabilities protocol security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-31439 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-31439 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 22, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202311-02 No Types Assigned https://security.gentoo.org/glsa/202311-02 Issue Tracking, Third Party Advisory Changed Reference Type https://www.debian.org/security/2023/dsa-5503 No Types Assigned https://www.debian.org/security/2023/dsa-5503 Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netatalk:netatalk:*:*:*:*:*:*:*:* versions up to (excluding) 3.1.13 -
CVE Modified by [email protected]
Nov. 01, 2023
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202311-02 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 21, 2023
Action Type Old Value New Value Added Reference https://www.debian.org/security/2023/dsa-5503 [No Types Assigned] -
CVE Modified by [email protected]
May. 17, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html [No Types Assigned] -
Initial Analysis by [email protected]
May. 27, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26 No Types Assigned https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26 Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-492/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-492/ Third Party Advisory, VDB Entry Added CPE Configuration OR *cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.2.3-25426-3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-31439 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-31439
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.00%
score
0.51666
percentile