6.5
MEDIUM
CVE-2021-22960
Apache LL HTTP Chunked Request Smuggling Vulnerability
Description

The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions.

INFO

Published Date :

Nov. 3, 2021, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:51 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.5

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-22960 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 Debian debian_linux
1 Oracle graalvm
1 Llhttp llhttp
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-2021-22960.

URL Resource
https://hackerone.com/reports/1238099 Exploit Issue Tracking Third Party Advisory
https://www.debian.org/security/2022/dsa-5170 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://hackerone.com/reports/1238099 Exploit Issue Tracking Third Party Advisory
https://www.debian.org/security/2022/dsa-5170 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch 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).

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

The following list is the news that have been mention CVE-2021-22960 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-22960 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://hackerone.com/reports/1238099
    Added Reference https://www.debian.org/security/2022/dsa-5170
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Jan. 20, 2023

    Action Type Old Value New Value
    Changed Reference Type https://www.debian.org/security/2022/dsa-5170 No Types Assigned https://www.debian.org/security/2022/dsa-5170 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 28, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5170 [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 29, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:oracle:graalvm:20.3.4:*:*:*:enterprise:*:*:* *cpe:2.3:a:oracle:graalvm:21.3.0:*:*:*:enterprise:*:*:*
  • CVE Modified by [email protected]

    Feb. 07, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 05, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
    Changed Reference Type https://hackerone.com/reports/1238099 No Types Assigned https://hackerone.com/reports/1238099 Exploit, Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-444
    Added CPE Configuration OR *cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* versions up to (excluding) 2.1.4 *cpe:2.3:a:llhttp:llhttp:*:*:*:*:*:node.js:*:* versions from (including) 3.0.0 up to (excluding) 6.0.6
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-2021-22960 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-2021-22960 weaknesses.

Exploit Prediction

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

0.69 }} 0.20%

score

0.80639

percentile

CVSS31 - Vulnerability Scoring System
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