cbcvebase.
CVE-2023-22232
published 2023-02-17

CVE-2023-22232: Adobe Connect versions 11.4.5 (and earlier), 12.1.5 (and earlier) are affected by an Improper Access Control vulnerability that could result in a Security…

PriorityP262medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EXPLOIT
EPSS
81.88%
99.6th percentile
Adobe Connect versions 11.4.5 (and earlier), 12.1.5 (and earlier) are affected by an Improper Access Control vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to impact the integrity of a minor feature. Exploitation of this issue does not require user interaction.

Affected

3 ranges
VendorProductVersion rangeFixed in
adobeconnect11.0 – 11.4.5
adobeconnect12.0 – 12.1.5
adobeconnectunspecified – 11.4.5

Detection & IOCsextracted from sources · hover to see the quote

url/system/download?download-url=/_a7/p49dm7f4qjyt/output/&name=exam.pdf
path/system/download
urlhttps://target.com/[folder]/download?download-url=[URL]&name=[file.type]
urlhttps://target.com/[folder]/download?output=output&download_type=[Suffix]&ffn=[URL]&baseContentUrl=[base file folder]
  • Detect exploitation attempts by monitoring HTTP GET requests to the /system/download endpoint with parameters 'download-url' and 'name', especially when no authentication is present. Responses containing 'Save to My Computer', 'Click to Download', and a filename in the body with HTTP 200 indicate successful exploitation.
  • Monitor for unauthenticated GET requests to paths matching /*/download with query parameters 'download-url' (pointing to internal paths) and 'name' (specifying a file extension), which indicate LFD exploitation attempts.
  • Monitor for unauthenticated GET requests to paths matching /*/download with query parameters 'ffn', 'download_type', and 'baseContentUrl', which indicate multi-file ZIP download exploitation attempts.
  • Monitor unauthenticated access to /system/help/support for username disclosure attempts on Adobe Connect instances.
  • ·The Nuclei template probe path uses a hardcoded internal Adobe Connect path as the download-url value; real exploitation will use attacker-controlled paths pointing to sensitive server files (e.g., /etc/passwd via path traversal).
  • ·The vulnerability affects Adobe Connect 11.4.5 and earlier AND 12.1.5 and earlier (two separate version branches); detection rules should account for both branches.
  • ·Exploitation requires no user interaction and no authentication (PR:N, UI:N per CVSS), meaning any unauthenticated HTTP request to the vulnerable endpoint is a valid attack vector.
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