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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

eventlet

dnspython

eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.

CVE-2023-29483 is a vulnerability rooted in the eventlet library versions prior to 0.35.2, which is used by dnspython versions before 2.6.0. The vulnerability allows remote attackers to interfere with DNS name resolution by rapidly sending invalid DNS packets from the expected source IP address and port. This attack, known as a "TuDoor" attack, exploits the fact that dnspython does not adhere to the preferred DNS resolution behavior of waiting for a valid response within the full timeout window. Instead, dnspython prematurely abandons the resolution process upon receiving an invalid packet, leading to potential denial of service or manipulation of DNS responses. The vulnerability affects the confidentiality, integrity, and availability of DNS resolution, as attackers can disrupt or manipulate DNS queries. The CVSS v3.1 base score is 7.0, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, and partial impacts on confidentiality and integrity with high impact on availability. No known exploits have been reported in the wild, but the vulnerability poses a significant risk to systems relying on vulnerable dnspython versions. Notably, dnspython 2.6.0 is unusable due to a separate issue, and the fix is included in version 2.6.1. The vulnerability is tracked under CWE-292 (Improper Authentication).

Detailed information about CVE-2023-29483: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-29483: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-29483: n/a

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