CVE-2022-3602 & CVE-2022-3786 Scanner

OpenSSL is an open-source cryptographic library widely used in online communication security. It is used to implement secure communication protocols like TLS/SSL in web servers, email servers, and VPNs. OpenSSL provides a suite of cryptographic functions, including encryption, decryption, digital signature generation, and verification. Additionally, OpenSSL is used as a library for programming languages like C, Python, and Java to embed encryption and decryption capabilities into applications.

The CVE-2022-3786 vulnerability in OpenSSL affects X.509 certificate verification, specifically in name constraint checking. This occurs after the certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. In other words, an attacker can exploit this vulnerability by crafting a malicious email address in a certificate which can overflow an arbitrary number of bytes containing the `.' character on the stack.

CVE-2022-3602 is a critical vulnerability detected in OpenSSL, affecting several versions of the software. This vulnerability is situated in X.509 certificate verification, specifically in name constraint checking, which can be triggered while constructing a path to a trusted issuer. Attackers can use this vulnerability to craft malicious email addresses, triggering a buffer overrun that could result in a crash, denial of service, or potentially remote code execution. It's crucial to note that this flaw can only be executed by an attacker who has signed a malicious certificate or by deceiving the software into continuing certificate verification despite the path to the trusted issuer failing.

These vulnerabilities can put users' sensitive data at great risk, as well as create potential legal and financial liabilities. Hackers who successfully exploit these vulnerabilities can gain access to confidential information, cause financial loss, and damage the reputation of businesses and organizations. It is therefore essential to take precautions to protect against these vulnerabilities.

In conclusion, OpenSSL plays a crucial role in securing online communication and data transfer. However, it is not immune to security vulnerabilities that can put users' data at risk. Taking preventive measures such as updating software regularly, applying security patches, scanning systems for vulnerabilities, and using anti-malware software, firewalls, and strong passwords is essential. Thanks to s4e.io, users can quickly and easily learn about vulnerabilities in their digital assets and take active steps to safeguard their data.

REFERENCES

• http://packetstormsecurity.com/files/169687/OpenSSL-Security-Advisory-20221101.html
• http://www.openwall.com/lists/oss-security/2022/11/01/15
• http://www.openwall.com/lists/oss-security/2022/11/01/16
• http://www.openwall.com/lists/oss-security/2022/11/01/17
• http://www.openwall.com/lists/oss-security/2022/11/01/18
• http://www.openwall.com/lists/oss-security/2022/11/01/19
• http://www.openwall.com/lists/oss-security/2022/11/01/20
• http://www.openwall.com/lists/oss-security/2022/11/01/21
• http://www.openwall.com/lists/oss-security/2022/11/01/24
• http://www.openwall.com/lists/oss-security/2022/11/02/1
• http://www.openwall.com/lists/oss-security/2022/11/02/10
• http://www.openwall.com/lists/oss-security/2022/11/02/11
• http://www.openwall.com/lists/oss-security/2022/11/02/12
• http://www.openwall.com/lists/oss-security/2022/11/02/13
• http://www.openwall.com/lists/oss-security/2022/11/02/14
• http://www.openwall.com/lists/oss-security/2022/11/02/15
• http://www.openwall.com/lists/oss-security/2022/11/02/2
• http://www.openwall.com/lists/oss-security/2022/11/02/3
• http://www.openwall.com/lists/oss-security/2022/11/02/5
• http://www.openwall.com/lists/oss-security/2022/11/02/6
• http://www.openwall.com/lists/oss-security/2022/11/02/7
• http://www.openwall.com/lists/oss-security/2022/11/02/9
• http://www.openwall.com/lists/oss-security/2022/11/03/1
• http://www.openwall.com/lists/oss-security/2022/11/03/10
• http://www.openwall.com/lists/oss-security/2022/11/03/11
• http://www.openwall.com/lists/oss-security/2022/11/03/2
• http://www.openwall.com/lists/oss-security/2022/11/03/3
• http://www.openwall.com/lists/oss-security/2022/11/03/5
• http://www.openwall.com/lists/oss-security/2022/11/03/6
• http://www.openwall.com/lists/oss-security/2022/11/03/7
• http://www.openwall.com/lists/oss-security/2022/11/03/9
• https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fe3b639dc19b325846f4f6801f2f4604f56e3de3
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63YRPWPUSX3MBHNPIEJZDKQT6YA7UF6S/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWP23EZYOBDJQP7HP4YU7W2ABU2YDITS/
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0023
• https://security.gentoo.org/glsa/202211-01
• https://security.netapp.com/advisory/ntap-20221102-0001/
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-W9sdCc2a
• https://www.kb.cert.org/vuls/id/794340
• https://www.openssl.org/news/secadv/20221101.txt