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.
Published 2017-11-06 22:29:00
Updated 2017-12-20 02:29:03
Source ICS-CERT
View at NVD,   CVE.org
Vulnerability category: OverflowExecute code

Products affected by CVE-2017-14016

Exploit prediction scoring system (EPSS) score for CVE-2017-14016

17.28%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2017-14016

  • Advantech WebAccess Webvrpcs Service Opcode 80061 Stack Buffer Overflow
    Disclosure Date: 2017-11-02
    First seen: 2020-04-26
    exploit/windows/scada/advantech_webaccess_webvrpcs_bof
    This 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 First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
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

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)
  • 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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