4.4
MEDIUM
CVE-2020-8152
Nextcloud Server SSL/TLS Encryption Key Replacement
Description

Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on.

INFO

Published Date :

Nov. 16, 2020, 1:15 a.m.

Last Modified :

Sept. 27, 2022, 3:46 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

0.8
Public PoC/Exploit Available at Github

CVE-2020-8152 has a 2 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-2020-8152 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 Nextcloud nextcloud_server
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-2020-8152.

URL Resource
http://seclists.org/fulldisclosure/2020/Dec/54 Exploit Mailing List Third Party Advisory
https://hackerone.com/reports/743505 Exploit Issue Tracking Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 Broken Link 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).

None

Updated: 3 months ago
82 stars 32 fork 32 watcher
Born at : Oct. 2, 2020, 2:49 p.m. This repo has been linked 1111 different CVEs too.

CVE-2020-8290 – Elevation of Privilege in Backblaze

Updated: 3 years, 10 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 9, 2020, 2:42 p.m. This repo has been linked 2 different CVEs too.

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

The following list is the news that have been mention CVE-2020-8152 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8152 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
  • Reanalysis by [email protected]

    Sep. 27, 2022

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2020/Dec/54 Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2020/Dec/54 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 Broken Link, Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.0 OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.0
  • Modified Analysis by [email protected]

    May. 24, 2022

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2020/Dec/54 No Types Assigned http://seclists.org/fulldisclosure/2020/Dec/54 Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Dec. 26, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/Dec/54 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 23, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://hackerone.com/reports/743505 No Types Assigned https://hackerone.com/reports/743505 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 No Types Assigned https://nextcloud.com/security/advisory/?id=NC-SA-2020-040 Vendor Advisory
    Added CWE NIST CWE-522
    Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.0
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-2020-8152 is associated with the following CWEs:

Exploit Prediction

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

0.06 }} 0.00%

score

0.21552

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability