CVE-2019-11208

TIBCO API Exchange Processes OAuth Incorrectly

Medium · published August 8, 2019

CVSS v3.0
6.4
EPSS
1%
Percentile
59.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky OAuth oversight lets a cunning hacker slip past the gates! This vulnerability in TIBCO API Exchange Gateway could escalate privileges through a tricky implementation with multiple scopes. 🔑 Think of it like a hotel with fancy restrictions on who can access which floors, but a critical oversight means anyone with a valid keycard can waltz into the penthouse suite. That’s a big no-no! An attacker could exploit this flaw to gain unauthorized access to sensitive features or data, elevating their privileges beyond what they should have. While not immediately catastrophic, the potential for misuse is definitely concerning for any organization relying on this setup.

Put simply

Think of it like a hotel with fancy restrictions on who can access which floors, but a critical oversight means anyone with a valid keycard can waltz into the penthouse suite. That’s a big no-no! This vulnerability arises from the authorization component mishandling OAuth scopes, allowing for privilege escalation on customer endpoints in TIBCO API Exchange Gateway and its distribution for TIBCO Silver Fabric versions 2.3.1 and earlier.

What to do

An attacker could exploit this flaw to gain unauthorized access to sensitive features or data, elevating their privileges beyond what they should have. While not immediately catastrophic, the potential for misuse is definitely concerning for any organization relying on this setup. To secure your systems, upgrade to TIBCO API Exchange Gateway version 2.3.2 or later. Additionally, audit your OAuth implementations to ensure that scopes are correctly assigned and enforced against unauthorized access. You've got this! By taking these steps, you'll be one step closer to protecting your API like a security pro! 🛡️

The record
Technical detail
CVSS v3.0
6.4 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00906 · 59.5th percentile
Published
2019-08-08T15:36Z
EPSS history
Timeline
  • 08 AUG 15:36Z
    TIBCO API Exchange Processes OAuth Incorrectly
    cvelistv5