Highly exploitable, CVE-2023-34035 poses a critical security risk that could lead to severe breaches.
Status: Modified
Last updated: 🕗 21 Nov 2024, 08:06 UTC
Originally published on: 🕓 18 Jul 2023, 16:15 UTC
Time between publication and last update: 491 days
CVSS Release: version 3
security@vmware.com
Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVE-2023-34035: Spring Security versions 5.8 prior to 5.8.5, 6.0 prior to 6.0.5, and 6.1 prior to 6.1.2 could be susceptible to authorization rule misconfiguration if the application uses requestMatchers(String) and multiple servlets, one of them being Spring MVC’s DispatcherServlet. (DispatcherServlet is a Spring MVC component that maps HTTP endpoints to methods on @Controller-annotated classes.) Specifically, an application is vulnerable when all of the following are true: * Spring MVC is on the classpath * Spring Security is securing more than one servlet in a single application (one of them being Spring MVC’s DispatcherServlet) * The application uses requestMatchers(String) to refer to endpoints that are not Spring MVC endpoints An application is not vulnerable if any of the following is true: * The application does not have Spring MVC on the classpath * The application secures no servlets other than Spring MVC’s DispatcherServlet * The application uses requestMatchers(String) only for Spring MVC endpoints
The exploitability of CVE-2023-34035 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
With low attack complexity and no required privileges, CVE-2023-34035 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
Above is the CVSS Sub-score Breakdown for CVE-2023-34035, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
Below is the Impact Analysis for CVE-2023-34035, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
The EPSS score estimates the probability that this vulnerability will be exploited in the near future.
EPSS Score: 0.077% (probability of exploit)
EPSS Percentile: 36.25%
(lower percentile = lower relative risk)
This vulnerability is less risky than approximately 63.75% of others.
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