Vulnerability Details : CVE-2017-14016
Public exploit exists!
A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.
Vulnerability category: OverflowExecute code
Exploit prediction scoring system (EPSS) score for CVE-2017-14016
Probability of exploitation activity in the next 30 days: 16.68%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 96 % EPSS Score History EPSS FAQ
Metasploit modules for CVE-2017-14016
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Advantech WebAccess Webvrpcs Service Opcode 80061 Stack Buffer Overflow
Disclosure Date: 2017-11-02First seen: 2020-04-26exploit/windows/scada/advantech_webaccess_webvrpcs_bofThis module exploits a stack buffer overflow in Advantech WebAccess 8.2. By sending a specially crafted DCERPC request, an attacker could overflow the buffer and execute arbitrary code. Authors: - mr_me <mr_me@offensive-security.com>
CVSS scores for CVE-2017-14016
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
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6.4
|
NIST |
6.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
2.8
|
3.4
|
NIST |
CWE ids for CVE-2017-14016
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
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A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2017-14016
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https://ics-cert.us-cert.gov/advisories/ICSA-17-306-02
Advantech WebAccess | CISAUS Government Resource;Third Party Advisory
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http://www.securityfocus.com/bid/101685
Advantech WebAccess Multiple Remote Code Execution VulnerabilitiesThird Party Advisory;VDB Entry
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https://www.exploit-db.com/exploits/43340/
Advantech WebAccess 8.2-2017.03.31 - Webvrpcs Service Opcode 80061 Stack Buffer Overflow (Metasploit)
Products affected by CVE-2017-14016
- cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*