CVE-2024-9823 Details
Description
There exists a security vulnerability in Jetty's DosFilter which can be exploited by unauthorized

users to cause remote denial-of-service (DoS) attack on the server using DosFilter. By repeatedly sending crafted requests,

attackers can trigger OutofMemory errors and exhaust the server's memory finally.


Vulnerability details
The Jetty DoSFilter (Denial of Service Filter) is a security filter designed to protect web

applications against certain types of Denial of Service (DoS) attacks and other abusive behavior. It

helps to mitigate excessive resource consumption by limiting the rate at which clients can make

requests to the server. The DoSFilter monitors and tracks client request patterns, including

request rates, and can take actions such as blocking or delaying requests from clients that exceed

predefined thresholds. The internal tracking of requests in DoSFilter is the source of this OutOfMemory

condition.


Impact
Users of the DoSFilter may be subject to DoS attacks that
will ultimately exhaust the memory of the server if they have not
configured session passivation or an aggressive session inactivation
timeout.


Patches
The DoSFilter has been patched in all active releases to no longer support the session tracking mode, even if configured.


Patched releases:



* 9.4.54

* 10.0.18

* 11.0.18

* 12.0.3
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2024-9823
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.2 Probability of exploitation activity being observed over the next 30 days (42st percentile)
CVSS score for CVE-2024-9823
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
5.3 Medium
Products affected by CVE-2024-9823
Jetty 11.0.17
Jetty 11.0.3
Jetty 11.0.5
Jetty 11.0.6
Jetty 11.0.7
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
More on DVE scores

CVE-2024-9823 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 22,318 32.92%
CN 8,223 12.13%
DE 5,762 8.50%
FR 2,604 3.84%
SG 1,942 2.86%
GB 1,912 2.82%
IN 1,789 2.64%
JP 1,784 2.63%
KR 1,625 2.40%
CA 1,514 2.23%

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CVE-2024-9823 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 42,232 81.23%
Telecommunications 7,072 13.60%
Education 1,011 1.94%
Government/Politics 473 0.91%
Business Services 362 0.70%
Retail 130 0.25%
Healthcare/Wellness 120 0.23%
Media/Entertainment 96 0.18%
Manufacturing 89 0.17%
Finance 78 0.15%

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