CVE-2000-0383: The file transfer component of AOL Instant Messenger (AIM) reveals the physical path of the transfer
The file transfer component of AOL Instant Messenger (AIM) reveals the physical path of the transferred file to the remote recipient.
AI Analysis
Technical Summary
CVE-2000-0383 is a medium-severity vulnerability affecting version 4.0 of AOL Instant Messenger (AIM), specifically its file transfer component. The vulnerability causes the physical file path of a transferred file on the sender's system to be disclosed to the remote recipient during the file transfer process. This information leakage occurs without requiring authentication or user interaction beyond the file transfer itself. The Common Vulnerability Scoring System (CVSS) score is 5.0, reflecting a network attack vector with low attack complexity, no authentication required, no impact on confidentiality, partial impact on integrity, and no impact on availability. The integrity impact arises because revealing the physical path may allow an attacker or recipient to infer sensitive information about the sender’s file system structure, user environment, or naming conventions, which could be leveraged in further targeted attacks or social engineering. However, the vulnerability does not allow direct modification or deletion of files, nor does it expose file contents or credentials. There is no patch available, and no known exploits have been reported in the wild. Given the age of the software and the specific nature of the vulnerability, exploitation would require active file transfer between users, limiting the scope of impact. Nonetheless, the disclosure of internal file paths can be considered a privacy concern and a potential information disclosure vector in a broader attack chain.
Potential Impact
For European organizations, the impact of this vulnerability is primarily related to privacy and information disclosure risks. Organizations using AIM 4.0 for internal or external communications could inadvertently expose internal directory structures or user environment details to external parties or malicious insiders. This could facilitate reconnaissance activities by threat actors aiming to map networked systems or identify valuable targets within the organization. While the vulnerability does not directly compromise system integrity or availability, the leaked information could be used in social engineering or spear-phishing campaigns tailored to the organization’s environment. Given that AIM 4.0 is an outdated product, the likelihood of widespread impact is low; however, legacy systems or niche use cases in certain sectors might still be vulnerable. The lack of a patch means organizations cannot remediate the vulnerability through software updates, increasing reliance on compensating controls. The vulnerability is less critical for organizations that have migrated to modern communication platforms but remains a consideration for those maintaining legacy AIM deployments.
Mitigation Recommendations
Since no patch is available for this vulnerability, European organizations should focus on mitigating risk through operational and procedural controls. First, organizations should identify and inventory any legacy AIM 4.0 deployments and assess whether file transfers are actively used. Disabling file transfers within AIM or restricting AIM usage to trusted internal networks can reduce exposure. Network segmentation and monitoring of AIM traffic can help detect unauthorized file transfers or anomalous behavior. User awareness training should emphasize the risks of sharing files and the potential for information leakage. Where possible, migrating users to modern, supported messaging platforms with secure file transfer capabilities is strongly recommended. Additionally, organizations can implement Data Loss Prevention (DLP) solutions to monitor and block sensitive information from being transmitted via AIM. Finally, reviewing and minimizing the amount of sensitive information stored in file paths or directory names can reduce the value of any leaked path information.
Affected Countries
United Kingdom, Germany, France, Italy, Spain, Netherlands
CVE-2000-0383: The file transfer component of AOL Instant Messenger (AIM) reveals the physical path of the transfer
Description
The file transfer component of AOL Instant Messenger (AIM) reveals the physical path of the transferred file to the remote recipient.
AI-Powered Analysis
Technical Analysis
CVE-2000-0383 is a medium-severity vulnerability affecting version 4.0 of AOL Instant Messenger (AIM), specifically its file transfer component. The vulnerability causes the physical file path of a transferred file on the sender's system to be disclosed to the remote recipient during the file transfer process. This information leakage occurs without requiring authentication or user interaction beyond the file transfer itself. The Common Vulnerability Scoring System (CVSS) score is 5.0, reflecting a network attack vector with low attack complexity, no authentication required, no impact on confidentiality, partial impact on integrity, and no impact on availability. The integrity impact arises because revealing the physical path may allow an attacker or recipient to infer sensitive information about the sender’s file system structure, user environment, or naming conventions, which could be leveraged in further targeted attacks or social engineering. However, the vulnerability does not allow direct modification or deletion of files, nor does it expose file contents or credentials. There is no patch available, and no known exploits have been reported in the wild. Given the age of the software and the specific nature of the vulnerability, exploitation would require active file transfer between users, limiting the scope of impact. Nonetheless, the disclosure of internal file paths can be considered a privacy concern and a potential information disclosure vector in a broader attack chain.
Potential Impact
For European organizations, the impact of this vulnerability is primarily related to privacy and information disclosure risks. Organizations using AIM 4.0 for internal or external communications could inadvertently expose internal directory structures or user environment details to external parties or malicious insiders. This could facilitate reconnaissance activities by threat actors aiming to map networked systems or identify valuable targets within the organization. While the vulnerability does not directly compromise system integrity or availability, the leaked information could be used in social engineering or spear-phishing campaigns tailored to the organization’s environment. Given that AIM 4.0 is an outdated product, the likelihood of widespread impact is low; however, legacy systems or niche use cases in certain sectors might still be vulnerable. The lack of a patch means organizations cannot remediate the vulnerability through software updates, increasing reliance on compensating controls. The vulnerability is less critical for organizations that have migrated to modern communication platforms but remains a consideration for those maintaining legacy AIM deployments.
Mitigation Recommendations
Since no patch is available for this vulnerability, European organizations should focus on mitigating risk through operational and procedural controls. First, organizations should identify and inventory any legacy AIM 4.0 deployments and assess whether file transfers are actively used. Disabling file transfers within AIM or restricting AIM usage to trusted internal networks can reduce exposure. Network segmentation and monitoring of AIM traffic can help detect unauthorized file transfers or anomalous behavior. User awareness training should emphasize the risks of sharing files and the potential for information leakage. Where possible, migrating users to modern, supported messaging platforms with secure file transfer capabilities is strongly recommended. Additionally, organizations can implement Data Loss Prevention (DLP) solutions to monitor and block sensitive information from being transmitted via AIM. Finally, reviewing and minimizing the amount of sensitive information stored in file paths or directory names can reduce the value of any leaked path information.
Affected Countries
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Threat ID: 682ca32db6fd31d6ed7dfaae
Added to database: 5/20/2025, 3:43:41 PM
Last enriched: 6/19/2025, 7:35:31 PM
Last updated: 7/30/2025, 7:23:57 PM
Views: 12
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