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Fencer Vulns
critical 9.8

CVE-2019-1935 in the critical feed json

Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data SCP User Default Credentials Vulnerability

published 2019-08-21 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10492

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
83.4%
EPSS 83.4% chance of exploitation in 30 days, percentile 99.6%
public exploits
2
Metasploit, Exploit-DB

Summary

A vulnerability in Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to log in to the CLI of an affected system by using the SCP User account (scpuser), which has default user credentials. The vulnerability is due to the presence of a documented default account with an undocumented default password and incorrect permission settings for that account. Changing the default password for this account is not enforced during the installation of the product. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the scpuser account. This includes full read and write access to the system's database.

Patch / fix

  • Cisco Cisco Unified Computing System Director 6.7.3.0

Timeline

  1. First public exploit (Metasploit exploit/linux/ssh/cisco_ucs_scpuser)
  2. Published

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
23 mo ago

Exploit prediction

83.39% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/ssh/cisco_ucs_scpuser Cisco UCS Director default scpuser password metasploit exploit, excellent rank, 2019-08-21
  • EDB-47346 Cisco UCS Director - default scpuser password (Metasploit) remote, 2019-09-03
  • seclists.org https://seclists.org/bugtraq/2019/Aug/49 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-Bypass-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Cisco Cisco Unified Computing System Director

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.