CVE-2020-12258

rConfig 3.9.4 is vulnerable to session fixation because session expiry and randomization are mishandled

published May 18, 2020

CVSS
—
EPSS
2%
Percentile
77.1
In the wild
Unconfirmed
What it is

⚠️ A session fixation flaw lurks in rConfig 3.9.4! Poor handling of session expiry means attackers can reuse sessions — it’s like a party guest sneaking back in once the bouncer turns their back. 🎭 Imagine a restaurant where diners can re-enter after leaving, but the host doesn’t reset their reservation. It’s a recipe for chaos when someone else takes their table, right? That’s exactly what happens when sessions aren’t properly randomized or expired! An attacker could take advantage of this vulnerability and hijack active sessions, potentially gaining unauthorized access to sensitive configurations. It’s like serving dinner to an uninvited guest — they could change the menu or even throw a surprise party at your expense!

Put simply

Imagine a restaurant where diners can re-enter after leaving, but the host doesn’t reset their reservation. It’s a recipe for chaos when someone else takes their table, right? That’s exactly what happens when sessions aren’t properly randomized or expired! This vulnerability arises due to mishandling of session expiration and the randomization process for PHPSESSID in rConfig. This allows attackers to exploit existing sessions rather than being forced to create new, secure ones.

What to do

An attacker could take advantage of this vulnerability and hijack active sessions, potentially gaining unauthorized access to sensitive configurations. It’s like serving dinner to an uninvited guest — they could change the menu or even throw a surprise party at your expense! To mitigate this, upgrade to the latest version of rConfig, ensuring that session parameters are randomized correctly. Additionally, implement strict session expiration policies to limit the lifetime of sessions. You've got this! With a little attention, you’ll have your sessions locked down in no time. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01708 · 77.1th percentile
Published
2020-05-18T13:01Z
EPSS history
Timeline
  • 18 MAY 13:01Z
    rConfig 3.9.4 is vulnerable to session fixation because session expiry and randomization are mishandled
    cvelistv5