CVE-2023-41335 Vulnerability Analysis & Exploit Details

CVE-2023-41335
Vulnerability Scoring

3.7
/10
Moderate Risk

Exploiting CVE-2023-41335 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2023-41335 Details

Status: Modified

Last updated: 🕗 21 Nov 2024, 08:21 UTC
Originally published on: 🕒 27 Sep 2023, 15:19 UTC

Time between publication and last update: 420 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N

CVE-2023-41335 Vulnerability Summary

CVE-2023-41335: Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

Assessing the Risk of CVE-2023-41335

Access Complexity Graph

The exploitability of CVE-2023-41335 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).

Exploitability Analysis for CVE-2023-41335

The exploitability of CVE-2023-41335 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

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.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-41335, 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.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-41335, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2023-41335 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2023-41335 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2023-41335 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.114% (probability of exploit)

EPSS Percentile: 46.65% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 53.35% of others.

CVE-2023-41335 References

External References

CWE Common Weakness Enumeration

CWE-312

CAPEC Common Attack Pattern Enumeration and Classification

  • Retrieve Embedded Sensitive Data CAPEC-37 An attacker examines a target system to find sensitive data that has been embedded within it. This information can reveal confidential contents, such as account numbers or individual keys/credentials that can be used as an intermediate step in a larger attack.

Vulnerable Configurations

  • cpe:2.3:a:matrix:synapse:1.66.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.66.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.66.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.66.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.66.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.66.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.67.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.67.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.67.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.67.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.68.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.68.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.68.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.68.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.68.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.68.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.69.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.69.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.69.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.69.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.69.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.69.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.69.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.69.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.69.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.69.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.70.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.70.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.70.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.70.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.70.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.70.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.70.1:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.70.1:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.71.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.71.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.71.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.71.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.71.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.71.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.72.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.72.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.72.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.72.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.73.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.73.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.73.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.73.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.73.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.73.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.74.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.74.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.74.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.74.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.75.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.75.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.75.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.75.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.75.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.75.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.76.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.76.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.76.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.76.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.76.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.76.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.77.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.77.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.77.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.77.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.77.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.77.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.78.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.78.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.78.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.78.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.79.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.79.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.79.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.79.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.79.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.79.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.80.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.80.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.80.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.80.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.80.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.80.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.81.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.81.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.81.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.81.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.81.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.81.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.82.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.82.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.82.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.82.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.83.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.83.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.83.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.83.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.84.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.84.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.84.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.84.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.84.1:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.84.1:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.85.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.85.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.85.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.85.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.85.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.85.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.85.1:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.85.1:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.85.2:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.85.2:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.86.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.86.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.86.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.86.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.86.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.86.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.87.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.87.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.87.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.87.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.88.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.88.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.88.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.88.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.89.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.89.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.89.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.89.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.90.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.90.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.90.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.90.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.91.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.91.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.91.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.91.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.91.1:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.91.1:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.91.2:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.91.2:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.92.0:-:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.92.0:-:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.92.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.92.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.92.1:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.92.1:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.92.2:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.92.2:*:*:*:*:*:*:*
  • cpe:2.3:a:matrix:synapse:1.92.3:*:*:*:*:*:*:*
    cpe:2.3:a:matrix:synapse:1.92.3:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
    cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

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