7.5
HIGH
CVE-2019-17502
Hydra NULL Pointer Dereference Denial of Service
Description

Hydra through 0.1.8 has a NULL pointer dereference and daemon crash when processing POST requests that lack a Content-Length header. read.c, request.c, and util.c contribute to this. The process_header_end() function calls boa_atoi(), which ultimately calls atoi() on a NULL pointer.

INFO

Published Date :

Oct. 12, 2019, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 4:32 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2019-17502 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-2019-17502 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 Hydra_project hydra
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-2019-17502.

URL Resource
http://hydra.hellug.gr Third Party Advisory
https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c Exploit Third Party Advisory
http://hydra.hellug.gr Third Party Advisory
https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c Exploit Third Party 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).

Hydra v0.1.8 webserver with marginally less CVEs.

c firmware webserver hydra eol cve-2019-17502

Makefile M4 Shell C Yacc Lex Perl

Updated: 3 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 8, 2021, 1:51 a.m. This repo has been linked 1 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-2019-17502 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-17502 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 http://hydra.hellug.gr
    Added Reference https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 17, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://hydra.hellug.gr No Types Assigned http://hydra.hellug.gr Third Party Advisory
    Changed Reference Type https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c No Types Assigned https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c Exploit, Third Party Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:a:hydra_project:hydra:*:*:*:*:*:*:*:* versions up to (including) 0.1.8
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-2019-17502 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-2019-17502 weaknesses.

Exploit Prediction

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

0.14 }} 0.02%

score

0.50020

percentile

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