Vulnerability Details : CVE-2017-7909
A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.
Vulnerability category: BypassGain privilege
Products affected by CVE-2017-7909
- cpe:2.3:o:advantech_b\+b_smartworx:mesr901_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7909
1.60%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7909
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-7909
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2017-7909
-
https://ics-cert.us-cert.gov/advisories/ICSA-17-122-03
Advantech B+B SmartWorx MESR901 | CISAThird Party Advisory;US Government Resource
-
http://www.securityfocus.com/bid/98257
Advantech B+B SmartWorx MESR901 CVE-2017-7909 Authentication Bypass VulnerabilityThird Party Advisory;VDB Entry
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