November 25, 2019
Multiple Kaspersky Products are prone to the following security vulnerabilities: 1. Multiple arbitrary command-execution vulnerabilities 2. An information-disclosure vulnerability 3. A security-bypass vulnerability An attacker can exploit these issues to execute arbitrary commands, bypass certain security restrictions and perform unauthorized actions, obtain sensitive information or cause denial-of-service conditions. The following products are affected: Kaspersky Anti-Virus version 2020 and prior. Kaspersky Internet Security version 2020 and prior. Kaspersky Total Security version 2020 and prior. Kaspersky Free Anti-Virus version 2020 and prior. Kaspersky Small Office Security version 7 and prior. Kaspersky Security Cloud version 2020 and prior.
- Kaspersky Lab Kaspersky Anti-Virus 2019
- Kaspersky Lab Kaspersky Anti-Virus 2019 Patch F
- Kaspersky Lab Kaspersky Anti-Virus 2020
- Kaspersky Lab Kaspersky Internet Security 2019
- Kaspersky Lab Kaspersky Internet Security 2019 Patch F
- Kaspersky Lab Kaspersky Internet Security 2020
- Kaspersky Lab Kaspersky Security Cloud 2019
- Kaspersky Lab Kaspersky Security Cloud 2020
- Kaspersky Lab Kaspersky Small Office Security 6
- Kaspersky Lab Kaspersky Small Office Security 7
- Kaspersky Lab Kaspersky Total Security 2019
- Kaspersky Lab Kaspersky Total Security 2019 Patch F
- Kaspersky Lab Kaspersky Total Security 2020
Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to detect and block attacks and anomalous activity such as requests containing suspicious URI sequences. Since the webserver may log such requests, review its logs regularly.
Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.
Implement multiple redundant layers of security.
Use of multiple redundant layers of encryption may reduce exposure to this and other latent vulnerabilities.
Updates are available. Please see the references for more information.
Wladimir Palant (palant).
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