CVE-2017-14766

Student Result or Employee Database <= 1.6.3 - Authentication Bypass

2017-09-21 00:00
Benjamin Lim

Strategic Overview

Status
Patched in 1.6.4
Affected Version
<= 1.6.3
CVSS
9.8Critical
Weakness type
CWE-288 · Authentication Bypass Using an Alternate Path or Channel
CVE
CVE-2017-14766
View all Student Result or Employee Database vulnerabilities

At a glance

CVE-2017-14766 is a critical-severity Authentication Bypass Using an Alternate Path or Channel vulnerability in the Student Result or Employee Database WordPress plugin, affecting versions <= 1.6.3. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.6.4; sites on affected versions should update now. Disclosed September 2017, reported by Benjamin Lim.

Vulnerability Overview

The Simple Student Result plugin before 1.6.4 for WordPress has an Authentication Bypass vulnerability because the fn_ssr_add_st_submit() function and fn_ssr_del_st_submit() function in functions.php only require knowing the student id number.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-288: Authentication Bypass Using an Alternate Path or Channel

Student Result or Employee Database <= 1.6.3 carries this weakness at fn_ssr_add_st_submit(), and reaching it takes a caller who can reach the endpoint. Authentication bypass through an alternate path means the application has a second route to a protected action that skips the checks the primary route performs.

The protection on the main path becomes irrelevant, because the attacker simply uses the route that never asks. For Student Result or Employee Database the fix is 1.6.4: builds <= 1.6.3 are affected, anything from 1.6.4 onward is not.

Remediation

Update to version 1.6.4, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Student Result or Employee Database 1.6.4 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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