CVE-2021-22948: Weak RNG
First published: Thu Sep 23 2021(Updated: )
Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Revive-adserver Revive Adserver | <5.3.0 | |
| Revive-adserver Revive Adserver | =5.3.0-rc1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-22948?
CVE-2021-22948 is a vulnerability in the generation of session IDs in revive-adserver < 5.3.0.
What is the severity of CVE-2021-22948?
The severity of CVE-2021-22948 is high with a CVSS score of 7.1.
How can an attacker exploit CVE-2021-22948?
An attacker could theoretically brute force session IDs to take over a specific account.
What software versions are affected by CVE-2021-22948?
Revive-adserver versions prior to 5.3.0, including 5.3.0-rc1, are affected.
How can I fix CVE-2021-22948?
To fix CVE-2021-22948, upgrade to version 5.3.0 or later of revive-adserver.
- collector/nvd-index
- agent/references
- agent/severity
- agent/weakness
- agent/author
- agent/tags
- agent/description
- agent/type
- agent/event
- agent/last-modified-date
- agent/first-publish-date
- vendor/revive-adserver
- canonical/revive-adserver revive adserver
- version/revive-adserver revive adserver/5.3.0-rc1