Vulnerability Name:

CVE-2011-0766 (CCN-67640)

Assigned:2011-05-25
Published:2011-05-25
Updated:2011-07-13
Summary:The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.
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:N/I:L/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): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
5.8 Medium (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
4.3 Medium (CCN CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
3.2 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-310
Vulnerability Consequences:Other
References:Source: MITRE
Type: CNA
CVE-2011-0766

Source: CCN
Type: Erlang/OTP Web Site
Erlang/OTP R14B03 has been released

Source: CCN
Type: SA44709
Erlang/OTP SSH Insecure Random Number Generator Security Issue

Source: SECUNIA
Type: Vendor Advisory
44709

Source: CCN
Type: US-CERT VU#178990
Erlang/OTP SSH library uses a weak random number generator

Source: CERT-VN
Type: Patch, US Government Resource
VU#178990

Source: CCN
Type: OSVDB ID: 73264
Erlang/OTP SSH Predictable Seed Insecure Random Number Generator Weakness

Source: BID
Type: UNKNOWN
47980

Source: CCN
Type: BID-47980
Erlang/OTP SSH Library Random Number Generator Weakness

Source: XF
Type: UNKNOWN
erlangotp-ssh-weak-security(67640)

Source: CONFIRM
Type: Patch
https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5

Vulnerable Configuration:Configuration 1:
  • cpe:/a:erlang:crypto:1.0:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.3:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.4:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.5:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.5.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.5.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.5.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.5.3:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.6:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.6.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.6.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.6.3:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:1.6.4:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:2.0:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:2.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:2.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:crypto:*:*:*:*:*:*:*:* (Version <= 2.0.2.1)
  • OR cpe:/a:erlang:erlang/otp:r11b-5:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r12b-5:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r13b:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r13b02-1:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r13b03:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r13b04:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r14a:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r14b:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:r14b01:*:*:*:*:*:*:*
  • OR cpe:/a:erlang:erlang/otp:*:*:*:*:*:*:*:* (Version <= r14b02)
  • OR cpe:/a:ssh:ssh:1.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.4:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.5:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.6:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.7:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.8:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.9:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.10:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.11:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.12:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.13:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.14:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.15:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.16:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.17:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.18:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.19:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.20:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.21:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.22:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.23:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.24:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.25:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.26:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.27:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.28:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.29:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.30:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:1.2.31:*:*:*:*:*:*:*
  • OR cpe:/a:ssh:ssh:*:*:*:*:*:*:*:* (Version <= 2.0.4)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20110766000
    V
    		CVE-2011-0766 on Ubuntu 12.04 LTS (precise) - low.
    2011-05-31
    BACK
    erlang crypto 1.0
    erlang crypto 1.1
    erlang crypto 1.1.1
    erlang crypto 1.1.2
    erlang crypto 1.1.3
    erlang crypto 1.2
    erlang crypto 1.2.1
    erlang crypto 1.2.2
    erlang crypto 1.2.3
    erlang crypto 1.3
    erlang crypto 1.4
    erlang crypto 1.5
    erlang crypto 1.5.1.1
    erlang crypto 1.5.2
    erlang crypto 1.5.2.1
    erlang crypto 1.5.3
    erlang crypto 1.6
    erlang crypto 1.6.1
    erlang crypto 1.6.2
    erlang crypto 1.6.3
    erlang crypto 1.6.4
    erlang crypto 2.0
    erlang crypto 2.0.1
    erlang crypto 2.0.2
    erlang crypto *
    erlang erlang/otp r11b-5
    erlang erlang/otp r12b-5
    erlang erlang/otp r13b
    erlang erlang/otp r13b02-1
    erlang erlang/otp r13b03
    erlang erlang/otp r13b04
    erlang erlang/otp r14a
    erlang erlang/otp r14b
    erlang erlang/otp r14b01
    erlang erlang/otp *
    ssh ssh 1.2.0
    ssh ssh 1.2.1
    ssh ssh 1.2.2
    ssh ssh 1.2.3
    ssh ssh 1.2.4
    ssh ssh 1.2.5
    ssh ssh 1.2.6
    ssh ssh 1.2.7
    ssh ssh 1.2.8
    ssh ssh 1.2.9
    ssh ssh 1.2.10
    ssh ssh 1.2.11
    ssh ssh 1.2.12
    ssh ssh 1.2.13
    ssh ssh 1.2.14
    ssh ssh 1.2.15
    ssh ssh 1.2.16
    ssh ssh 1.2.17
    ssh ssh 1.2.18
    ssh ssh 1.2.19
    ssh ssh 1.2.20
    ssh ssh 1.2.21
    ssh ssh 1.2.22
    ssh ssh 1.2.23
    ssh ssh 1.2.24
    ssh ssh 1.2.25
    ssh ssh 1.2.26
    ssh ssh 1.2.27
    ssh ssh 1.2.28
    ssh ssh 1.2.29
    ssh ssh 1.2.30
    ssh ssh 1.2.31
    ssh ssh *