CVE-2020-15892
D-Link DAP-1520 Stack-Based Buffer Overflow
Description
An issue was discovered in apply.cgi on D-Link DAP-1520 devices before 1.10b04Beta02. Whenever a user performs a login action from the web interface, the request values are being forwarded to the ssi binary. On the login page, the web interface restricts the password input field to a fixed length of 15 characters. The problem is that validation is being done on the client side, hence it can be bypassed. When an attacker manages to intercept the login request (POST based) and tampers with the vulnerable parameter (log_pass), to a larger length, the request will be forwarded to the webserver. This results in a stack-based buffer overflow. A few other POST variables, (transferred as part of the login request) are also vulnerable: html_response_page and log_user.
INFO
Published Date :
July 22, 2020, 7:15 p.m.
Last Modified :
Nov. 21, 2024, 5:06 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
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-2020-15892.
| URL | Resource |
|---|---|
| https://research.loginsoft.com/bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/ | Exploit Third Party Advisory |
| https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 | Patch Vendor Advisory |
| https://research.loginsoft.com/bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/ | Exploit Third Party Advisory |
| https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 | Patch 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-2020-15892 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15892 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://research.loginsoft.com/bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/ Added Reference https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Nov. 08, 2023
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:d-link:dap-1520_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10b04 OR cpe:2.3:h:dlink:dap-1520:a1:*:*:*:*:*:*:* AND OR *cpe:2.3:o:dlink:dap-1520_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10b04 OR cpe:2.3:h:dlink:dap-1520:a1:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Apr. 26, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:d-link:dap-1520:a1:*:*:*:*:*:*:* OR *cpe:2.3:h:dlink:dap-1520:a1:*:*:*:*:*:*:* -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-120 CWE-669 CWE-787 -
Initial Analysis by [email protected]
Jul. 27, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://research.loginsoft.com/bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/ No Types Assigned https://research.loginsoft.com/bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/ Exploit, Third Party Advisory Changed Reference Type https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 No Types Assigned https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 Patch, Vendor Advisory Added CWE NIST CWE-120 Added CPE Configuration AND OR *cpe:2.3:o:d-link:dap-1520_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10b04 OR cpe:2.3:h:d-link:dap-1520:a1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15892 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-2020-15892
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.32 }} 0.10%
score
0.70543
percentile