Vulnerability Name:

CVE-1999-0894 (CCN-3355)

Assigned:1999-10-20
Published:1999-10-20
Updated:2022-08-17
Summary:Red Hat Linux screen program does not use Unix98 ptys, allowing local users to write to other terminals.
CVSS v3 Severity:10.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-1999-0894

Source: CCN
Type: RHSA-1999:042-01
Screen defaults to not using Unix98 ptys

Source: CCN
Type: OSVDB ID: 11273
Red Hat Linux screen Unix98 ptys Configuration Arbitrary Terminal Write

Source: CCN
Type: BID-732
RedHat screen pty(7) Vulnerability

Source: XF
Type: UNKNOWN
screen-pty-perms(3355)

Source: MISC
Type: UNKNOWN
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0894

Vulnerable Configuration:Configuration 1:
  • cpe:/o:redhat:linux:*:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:redhat:linux:6.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    redhat linux *
    redhat linux 6.1