Vulnerability Name:

CVE-2007-2768 (CCN-34490)

Assigned:2007-04-24
Published:2007-04-24
Updated:2021-04-01
Summary:OpenSSH, when using OPIE (One-Time Passwords in Everything) for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords (OTP), a similar issue to CVE-2007-2243.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
4.1 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N/E:H/RL:U/RC:UR)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
4.7 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N/E:H/RL:U/RC:UR)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: CCN
Type: Full-Disclosure Mailing List, Tue Apr 24 2007 - 04:10:27 CDT
Re: [Full-disclosure] OpenSSH - System Account Enumeration if S/Key is used

Source: FULLDISC
Type: Broken Link
20070424 Re: OpenSSH - System Account Enumeration if S/Key is used

Source: MITRE
Type: CNA
CVE-2007-2768

Source: CCN
Type: OpenSSH Web page
OpenSSH

Source: CCN
Type: One Time Passwords in Everything Web site
OPIE

Source: OSVDB
Type: Broken Link
34601

Source: CCN
Type: OSVDB ID: 34601
OPIE w/ OpenSSH Account Enumeration

Source: CCN
Type: OSVDB ID: 36207
OPIE accessfile.c Unspecified Off-by-one Remote DoS

Source: CCN
Type: BID-23669
Retired: OPIE Accessfile.C Remote Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
openssh-opie-information-disclosure(34490)

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20191107-0002/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openbsd:openssh:*:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/a:netapp:hci_management_node:-:*:*:*:*:*:*:*
  • OR cpe:/a:netapp:solidfire:-:*:*:*:*:*:*:*
  • OR cpe:/a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
  • OR cpe:/h:netapp:hci_storage_node:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:openbsd:openssh:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    openbsd openssh *
    netapp hci management node -
    netapp solidfire -
    netapp steelstore cloud integrated storage -
    netapp hci storage node -
    openbsd openssh *