CVE-2021-41832 is a high-severity vulnerability affecting all versions of Apache OpenOffice up to 4.1.10. This vulnerability allows an attacker to manipulate documents so that they appear to be signed by a trusted source. The potential exploitation of this vulnerability poses significant risks to organizations using the affected software. Organizations should prioritize patching immediately by updating to version 4.1.11.
The vulnerability has a CVSS score of 7.5, indicating high severity. The attack vector is network-based, and the complexity is low, meaning that skilled attackers can exploit this vulnerability without significant effort. With no privileges required or user interaction necessary, the risk to organizations includes unauthorized manipulation of document integrity.
Current exploitation status indicates that there are no known public exploits for CVE-2021-41832. However, organizations should remain vigilant, as the absence of known exploits does not mitigate the potential risk. Users are strongly advised to update to the latest version of Apache OpenOffice to protect against this vulnerability.
Given the potential for document manipulation, it is essential for organizations to assess their deployment of Apache OpenOffice and schedule remediation as part of their security strategy.
Vulnerability Details
CVE-2021-41832 is classified under CWE-347, which pertains to improper verification of a cryptographic signature. The vulnerability was published on October 11, 2021, and has been marked as modified. The official CVE description states that it is possible for an attacker to manipulate documents to appear to be signed by a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. For further details, refer to CVE-2021-25635 for the LibreOffice advisory.
The CVSS score for this vulnerability is 7.5, with a high severity classification. The attack vector is network-based, and the attack complexity is low, meaning that an attacker does not need advanced skills to exploit this vulnerability. No privileges are required, and no user interaction is necessary, which increases the risk. The confidentiality impact is none, while the integrity impact is high, indicating that this vulnerability can significantly affect the trustworthiness of documents.
Technical Analysis
The root cause of CVE-2021-41832 lies in the improper handling of document signatures within Apache OpenOffice. Attackers may leverage this vulnerability to forge documents, making them appear as though they originate from a trusted source. The attack vector is network-based, allowing attackers to exploit this vulnerability remotely.
The complexity of the attack is low, meaning that exploiting this vulnerability does not require advanced skills. No special privileges are needed for exploitation, and user interaction is not required, which increases the likelihood of successful attacks. The integrity impact of this vulnerability is high, as it enables the manipulation of documents without detection, while the confidentiality and availability impacts are negligible.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2021-41832 is significant due to the ability of attackers to manipulate document signatures. This could lead to unauthorized actions being taken based on fraudulent documents, which could result in financial loss, data breaches, or damage to reputation.
Organizations utilizing Apache OpenOffice should prioritize this vulnerability in their patch cycle, especially given its potential impact on document integrity. The urgency assessment indicates that organizations should patch immediately to mitigate risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Apache OpenOffice prior to 4.1.11 are affected by this vulnerability. Organizations should ensure that they are running the latest version to mitigate risks.
Mitigation & Remediation
Organizations should update to Apache OpenOffice version 4.1.11 or later to remediate this vulnerability. If an immediate patch is unavailable, organizations should consider implementing configuration hardening measures and monitoring for any unauthorized document manipulations. Additionally, organizations may want to engage in penetration testing to identify similar vulnerabilities in their systems.
Detection Guidance
Organizations should monitor logs for any suspicious document manipulations and behavioral anomalies. Key indicators include unexpected changes in document signatures and unauthorized access attempts to document management systems.
AppSecure Threat Intelligence Insight
CVE-2021-41832 highlights the importance of robust document verification processes within organizations. The vulnerability represents a trend towards exploiting trust in digital signatures, which can have far-reaching implications for organizational security. Security teams should learn from this incident to bolster their document handling policies and enhance the security of their application ecosystems.
Organizations are encouraged to adopt a comprehensive vulnerability management program that allows for ongoing assessments and updates to security practices in response to emerging threats.
Furthermore, security teams should consider utilizing proactive security measures such as penetration testing methodologies to identify and address vulnerabilities before they can be exploited.
In conclusion, CVE-2021-41832 serves as a warning to organizations relying on document integrity. By maintaining updated software and implementing rigorous security protocols, organizations can mitigate risks associated with this vulnerability.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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