Hackers Have Started Exploiting Drupal RCE Exploit Released Yesterday
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2018-7600 | Unauthenticated Remote Code Execution in Drupal Core (Drupalgeddon 2) CVE-2018-7600, widely known as 'Drupalgeddon 2', is an unauthenticated remote code execution flaw in Drupal Core caused by insufficient input validation (CWE-20) in how the CMS processes certain structured request data. It can be triggered through multiple attack vectors, such as crafted parameters submitted to commonly used form and rendering features that are reachable by anonymous users with a single HTTP request. Successful exploitation lets an attacker run arbitrary code under the web application, typically resulting in complete site compromise, and CISA notes the flaw has been used in ransomware operations. Any site running unpatched Drupal 7.x or 8.x core is affected; Drupal's installed base at the time of disclosure was on the order of one million sites. Exploitation is confirmed in the wild (CISA KEV, added 2021-11-03), EPSS assigns a 100% probability of exploitation within 30 days, and no public PoC is recorded in the supplied data. Do: Upgrade immediately per vendor instructions: Drupal 7.58, 8.5.1, or the corresponding 8.4.6/8.3.9 updates if you remain on older 8.x branches, prioritizing internet-facing sites. Because this flaw has been exploited in the wild and used in ransomware operations, also check patched sites for backdoors, unexpected administrator accounts, modified core files, and rotate credentials. | 9.8 | 100% | KEV ransomware PoC ×4 |
| mass≈1,000,000 sites (Drupal's self-reported installed base at time of disclosure) |
Full article355 words · extracted from thehackernews.com · click to collapse
Swati KhandelwalApr 14, 2018
Hackers have started exploiting a recently disclosed critical vulnerability in Drupal shortly after the public release of working exploit code.
Two weeks ago, Drupal security team discovered a highly critical remote code execution vulnerability, dubbed Drupalgeddon2, in its content management system software that could allow attackers to completely take over vulnerable websites.
To address this vulnerability the company immediately released updated versions of Drupal CMS without releasing any technical details of the vulnerability, giving more than a million sites enough time to patch the issue.
Two days ago, security researchers at Check Point and Dofinity published complete technical details about this vulnerability (CVE-2018-7600), using which, a Russian security researcher published a proof-of-concept (PoC) exploit code for Drupalgeddon2 on GitHub.
The Drupalgeddon2 vulnerability that affects all versions of Drupal from 6 to 8 allows an unauthenticated, remote attacker to execute malicious code on default or common Drupal installations.
According to checkpoint's disclosure, the vulnerability exists due to the insufficient sanitation of inputs passed via Form API (FAPI) AJAX requests.
"As a result, this enabled an attacker to potentially inject a malicious payload into the internal form structure. This would have caused Drupal to execute it without user authentication," Check Point researchers said.
"By exploiting this vulnerability, an attacker would have been able to carry out a full site takeover of any Drupal customer."
However, shortly after the public release of the PoC exploit, which many confirmed to be functional, researchers at Sucuri, Imperva, and the SANS Internet Storm Center started seeing attempts to exploit Drupalgeddon2, though none have yet to see any reports of websites being hacked.
Sites administrators still running vulnerable versions of Drupal are highly recommended to patch the vulnerability by updating their CMS to Drupal 7.58 or Drupal 8.5.1 as soon as possible to avoid exploits.
The vulnerability also affects Drupal 6, which is no longer supported by the company since February 2016, but a patch for the version has still been created.
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Text extracted automatically; images, tables and formatting may be missing. Original: https://thehackernews.com/2018/04/drupal-rce-exploit-code.html