Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-15135 First vendor Publication 2020-08-04
Vendor Cve Last vendor Modification 2020-08-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Overall CVSS Score 7.6
Base Score 7.6 Environmental Score 7.6
impact SubScore 5.5 Temporal Score 7.6
Exploitabality Sub Score 2.1
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

save-server (npm package) before version 1.05 is affected by a CSRF vulnerability, as there is no CSRF mitigation (Tokens etc.). The fix introduced in version version 1.05 unintentionally breaks uploading so version v1.0.7 is the fixed version. This is patched by implementing Double submit. The CSRF attack would require you to navigate to a malicious site while you have an active session with Save-Server (Session key stored in cookies). The malicious user would then be able to perform some actions, including uploading/deleting files and adding redirects. If you are logged in as root, this attack is significantly more severe. They can in addition create, delete and update users. If they updated the password of a user, that user's files would then be available. If the root password is updated, all files would be visible if they logged in with the new password. Note that due to the same origin policy malicious actors cannot view the gallery or the response of any of the methods, nor be sure they succeeded. This issue has been patched in version 1.0.7.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15135

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-352 Cross-Site Request Forgery (CSRF) (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
CONFIRM https://github.com/Neztore/save-server/security/advisories/GHSA-wwrj-35w6-77ff
MISC https://medium.com/cross-site-request-forgery-csrf/double-submit-cookie-patte...
https://www.npmjs.com/package/save-server

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
Date Informations
2021-05-04 13:47:53
  • Multiple Updates
2021-04-22 02:57:49
  • Multiple Updates
2020-08-11 00:22:56
  • Multiple Updates
2020-08-05 17:22:56
  • Multiple Updates
2020-08-05 05:22:54
  • First insertion