7.4
HIGH
CVE-2021-21354
Mozilla Pollbot Open Redirection Vulnerability
Description

Pollbot is open source software which "frees its human masters from the toilsome task of polling for the state of things during the Firefox release process." In Pollbot before version 1.4.4 there is an open redirection vulnerability in the path of "https://pollbot.services.mozilla.com/". An attacker can redirect anyone to malicious sites. To Reproduce type in this URL: "https://pollbot.services.mozilla.com//evil.com/". Affected versions will redirect to that website when you inject a payload like "//evil.com/". This is fixed in version 1.4.4.

INFO

Published Date :

March 8, 2021, 7:15 p.m.

Last Modified :

March 12, 2021, 3:21 p.m.

Remotely Exploitable :

Yes !

Impact Score :

4.0

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-21354 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 Mozilla pollbot
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-2021-21354.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1694684 Issue Tracking Permissions Required Third Party Advisory
https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html Third Party Advisory
https://github.com/mozilla/PollBot/commit/6db74a4fcbff258c7cdf51a6ff0724fc10c485e5 Patch Third Party Advisory
https://github.com/mozilla/PollBot/pull/333 Patch Third Party Advisory
https://github.com/mozilla/PollBot/releases/tag/v1.4.4 Third Party Advisory
https://github.com/mozilla/PollBot/security/advisories/GHSA-jhgx-wmq8-jc24 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).

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

The following list is the news that have been mention CVE-2021-21354 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-21354 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
  • Initial Analysis by [email protected]

    Mar. 12, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    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:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1694684 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1694684 Issue Tracking, Permissions Required, Third Party Advisory
    Changed Reference Type https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html No Types Assigned https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html Third Party Advisory
    Changed Reference Type https://github.com/mozilla/PollBot/commit/6db74a4fcbff258c7cdf51a6ff0724fc10c485e5 No Types Assigned https://github.com/mozilla/PollBot/commit/6db74a4fcbff258c7cdf51a6ff0724fc10c485e5 Patch, Third Party Advisory
    Changed Reference Type https://github.com/mozilla/PollBot/pull/333 No Types Assigned https://github.com/mozilla/PollBot/pull/333 Patch, Third Party Advisory
    Changed Reference Type https://github.com/mozilla/PollBot/releases/tag/v1.4.4 No Types Assigned https://github.com/mozilla/PollBot/releases/tag/v1.4.4 Third Party Advisory
    Changed Reference Type https://github.com/mozilla/PollBot/security/advisories/GHSA-jhgx-wmq8-jc24 No Types Assigned https://github.com/mozilla/PollBot/security/advisories/GHSA-jhgx-wmq8-jc24 Exploit, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:mozilla:pollbot:*:*:*:*:*:*:*:* versions up to (excluding) 1.4.4
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-2021-21354 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-2021-21354 weaknesses.

Exploit Prediction

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

0.18 }} 0.01%

score

0.54731

percentile

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