8.1
HIGH
CVE-2018-8929
Synology SSL VPN Client Man-in-the-Middle Attack Vulnerability
Description

Improper restriction of communication channel to intended endpoints vulnerability in HTTP daemon in Synology SSL VPN Client before 1.2.4-0224 allows remote attackers to conduct man-in-the-middle attacks via a crafted payload.

INFO

Published Date :

July 6, 2018, 12:29 p.m.

Last Modified :

May 12, 2021, 2:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2018-8929 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.

ID Vendor Product Action
1 Synology ssl_vpn_client
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-2018-8929.

URL Resource
https://www.synology.com/en-global/support/security/Synology_SA_18_19 Vendor Advisory

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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-8929 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-8929 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
  • CVE Modified by [email protected]

    May. 12, 2021

    Action Type Old Value New Value
    Removed CWE Synology Inc. CWE-923
    Added CWE Synology Inc. CWE-319
    Removed CWE Reason CWE-923 / Assessment performed prior to CVMAP efforts
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Synology Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
    Added CWE Synology Inc. CWE-923
  • Reanalysis by [email protected]

    Jun. 11, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:synology:ssl_vpn:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.4-0224 OR *cpe:2.3:a:synology:ssl_vpn_client:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.4-0224
  • Initial Analysis by [email protected]

    Sep. 02, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.synology.com/en-global/support/security/Synology_SA_18_19 No Types Assigned https://www.synology.com/en-global/support/security/Synology_SA_18_19 Vendor Advisory
    Added CWE CWE-417
    Added CPE Configuration OR *cpe:2.3:a:synology:ssl_vpn:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.4-0224
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-8929 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} -0.00%

score

0.41946

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
Confidentiality
Integrity
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