CVE-2023-33950 Liferay Portal has Inefficient Regular Expression
Remote attackers can cause denial of service by exploiting vulnerable regular expressions in Liferay Portal pattern redirects.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-33950?
CVE-2023-33950 is a medium-severity denial of service vulnerability in Liferay Digital Experience Platform, published on 24 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Pattern Redirects in Liferay Portal 7.4.3.48 through 7.4.3.76, and Liferay DXP 7.4 update 48 through 76 allows regular expressions that are vulnerable to ReDoS attacks to be used as patterns, which allows remote attackers to consume an excessive amount of server resources via crafted request URLs.
Weakness: CWE-1333
Which versions are affected by CVE-2023-33950?
3 open source packages ship an affected version, including com.liferay.portal:release.portal.bom and liferay. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
com.liferay.portal:release.portal.bom Maven | From 7.4.3.48 | 7.4.3.77 |
com.liferay.portal:release.portal.bom Maven | From 7.4.3.48 | 7.4.3.77 |
liferay Bitnami | From 7.4-update48.0 to 7.4-update48.0 | None |
Products include Liferay Digital Experience Platform, Liferay Liferay Portal.
How do I fix CVE-2023-33950?
Upgrade com.liferay.portal:release.portal.bom to 7.4.3.77 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-33950 being exploited?
There is no known exploitation of CVE-2023-33950 in the wild and no public exploit code.
Other vulnerabilities in Liferay Digital Experience Platform
- CVE-2024-8980 Liferay Portal and Liferay DXP Vulnerable to CSRF in the Script Console
- CVE-2023-42496 Liferay Portal and Liferay DXP vulnerable to reflected Cross-site Scripting
- CVE-2023-42498 Liferay Portal Language Override edit screen and Liferay DXP vulnerable to reflected Cross-site Scripting
- CVE-2024-25147 Liferay Portal and Liferay DXP vulnerable to Cross-site Scripting
- CVE-2024-26269 Liferay Portal Frontend JS module's portlet.js and Liferay DXP vulnerable to Cross-site Scripting
Sources
Also known as BIT-liferay-2023-33950, GHSA-chrc-q6v3-jfv8.