var-201805-1143
Vulnerability from variot
In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, several stack-based buffer overflow vulnerabilities have been identified, which may allow an attacker to execute arbitrary code. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WebAccess Node. Authentication is not required to exploit this vulnerability.The specific flaw exists within bwsound.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code under the context of Administrator. Advantech WebAccess and others are products of Advantech. Advantech WebAccess is a browser-based HMI/SCADA software. The software supports dynamic graphical display and real-time data control, and provides the ability to remotely control and manage automation equipment. WebAccess Dashboard is one of the dashboard components; WebAccess Scada Node is one of the monitoring node components. WebAccess/NMS is a suite of web browsers for the Network Management System (NMS). A stack buffer overflow vulnerability exists in several Advantech products. Advantech WebAccess is prone to the following security vulnerabilities: 1. Multiple SQL-injection vulnerabilities 2. An information-disclosure vulnerability 3. A file-upload vulnerability 4. Multiple directory-traversal vulnerabilities 5. Multiple stack-based buffer-overflow vulnerabilities 6. A heap-based buffer-overflow vulnerability 7. Multiple arbitrary code-execution vulnerabilities 8. A denial-of-service vulnerability 9. A security-bypass vulnerability 10. A privilege-escalation vulnerability An attacker can exploit these issues to execute arbitrary code in the context of the application, or modify data, or exploit latent vulnerabilities in the underlying database, delete arbitrary files, gain elevated privileges, perform certain unauthorized actions, upload arbitrary files to the affected application gain unauthorized access and obtain sensitive information. Failed attacks will cause denial of service conditions. Advantech WebAccess, etc. Advantech WebAccess is a set of HMI/SCADA software based on browser architecture. The following versions are affected: Advantech WebAccess 8.2_20170817 and earlier, 8.3.0 and earlier; WebAccess Dashboard 2.0.15 and earlier; WebAccess Scada Node 8.3.1 and earlier; WebAccess/NMS 2.0.3 and earlier
Show details on source website{
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Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.