cbcvebase.
CVE-2018-17888
published 2018-10-12

CVE-2018-17888: NUUO CMS all versions 3.1 and prior, The application uses a session identification mechanism that could allow attackers to obtain the active session ID, which…

PriorityP273critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
29.64%
98.0th percentile
NUUO CMS all versions 3.1 and prior, The application uses a session identification mechanism that could allow attackers to obtain the active session ID, which could allow arbitrary remote code execution.

Affected

2 ranges
VendorProductVersion rangeFixed in
nuuonuuo_cms<= 3.1—
nuuonuuo_cms——

Detection & IOCsextracted from sources · hover to see the quote

cookieJSESSIONID / session token (heap-address-derived, 1.2 million keyspace)↗
  • →Monitor for high-volume sequential or patterned session token probing against NUUO CMS login endpoints; an attacker may attempt up to 500,000–1,200,000 session ID guesses in rapid succession. ↗
  • →Detect session token brute-force attempts against NUUO CMS versions below 2.4; the session token is derived from a heap address, making it predictable and enumerable. ↗
  • →A successfully brute-forced session token can be leveraged for arbitrary remote code execution or file download; correlate session token brute-force activity with subsequent RCE or file-access attempts on the same NUUO CMS instance. ↗
  • →Brute-force attack requires an active authenticated user session on the target; correlate attack timing with legitimate user login events on NUUO CMS. ↗
  • ·Affected scope is NUUO CMS all versions 3.1 and prior per NVD, but the Metasploit module specifically targets versions below 2.4 for the heap-address session token weakness. ↗
  • ·The Metasploit auxiliary module is a bruteforce/gather module; separate exploit modules exist for post-session RCE and file download — defenders should account for chained module usage. ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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