Adobe out-of-band update addresses an actively exploited ColdFusion zero-day

Pierluigi Paganini July 20, 2023

Adobe released an emergency update to address critical vulnerabilities in ColdFusion, including an actively exploited zero-day.

Adobe released an out-of-band update to address critical and moderate vulnerabilities in ColdFusion, including a zero-day flaw that is actively exploited in attacks.

 The vulnerabilities could lead to arbitrary code execution and security feature bypass. The impacted ColdFusion versions are 2023, 2021 and 2018.

Below is the list of the issues addressed by the software firm with this out-of-band update:

Vulnerability CategoryVulnerability ImpactSeverityCVSS base score CVSS vectorCVE Numbers
Deserialization of Untrusted Data (CWE-502)Arbitrary code execution
Improper Access Control (CWE-284)Security feature bypassCritical7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2023-38205
Improper Access Control (CWE-284)Security feature bypassModerate5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2023-38206

According to the bulletin, the vulnerability tracked as CVE-2023-38205 has been exploited in the wild in limited attacks targeting ColdFusion. This flaw is an Improper Access Control that could lead to a security feature bypass.

“Adobe has released security updates for ColdFusion versions 2023, 2021 and 2018. These updates resolve critical  and moderate vulnerabilities that could lead to arbitrary code execution and security feature bypass.” reads the security bulletin. “Adobe is aware that CVE-2023-38205 has been exploited in the wild in limited attacks targeting Adobe ColdFusion.”

The CVE-2023-38205 vulnerability was discovered by Stephen Fewer from security firm Rapid7.

The CVE-2023-38205 vulnerability is a patch bypass for the fix for the ColdFusion authentication bypass issue tracked as CVE-2023-29298.

Last week, Adobe warned customers of a critical ColdFusion pre-authentication RCE bug, tracked as CVE-2023-29300, which is actively exploited. The issue was part of an exploit chain, that included the CVE-2023-29298 and CVE-2023-38203, which was used to deploy webshells on vulnerable ColdFusion servers.

BllepingComputer confirmed that the fix for CVE-2023-29298 is included in APSB23-47 as the CVE-2023-38205 patch.

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Pierluigi Paganini

(SecurityAffairs – hacking, Adobe)

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