Adobe warns customers of a critical ColdFusion RCE exploited in attacks

Pierluigi Paganini July 17, 2023

Adobe is warning customers of a critical ColdFusion pre-authentication RCE bug, tracked as CVE-2023-29300, which is actively exploited.

Adobe warns customers of a critical ColdFusion pre-authentication remote code execution vulnerability, tracked as CVE-2023-29300 (CVSS score 9.8), that is actively exploited in attacks in the wild.

“Adobe is aware that CVE-2023-29300 has been exploited in the wild in very limited attacks targeting Adobe ColdFusion,” reads a statement sent by the company to its customers.

An unauthenticated visitor can exploit the vulnerability to remotely execute commands on vulnerable Coldfusion 2018, 2021, and 2023 servers.

The issue is a deserialization of untrusted data that was discovered by the security researcher Nicolas Zilio from CrowdStrike.

Adobe has not disclosed the technical details of the issue either the way threat actors exploited it in the wild.

Adobe addressed a total of three vulnerabilities in ColdFusion, below the complete list of fixed issues:

Vulnerability Details

Vulnerability CategoryVulnerability ImpactSeverityCVSS base score CVSS vectorCVE Numbers
Improper Access Control (CWE-284)Security feature bypass
Deserialization of Untrusted Data (CWE-502)Arbitrary code executionCritical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2023-29300
Improper Restriction of Excessive Authentication Attempts (CWE-307)Security feature bypassImportant5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2023-29301

In March 2023, U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a critical vulnerability in Adobe ColdFusion, tracked as CVE-2023-26360 (CVSS score: 8.6), to its Known Exploited Vulnerabilities Catalog.

The flaw is an Improper Access Control that can allow a remote attacker to execute arbitrary code. The vulnerability could also lead to arbitrary file system read and memory leak.

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Pierluigi Paganini

(SecurityAffairs – hacking, Adobe)

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