Vulnerability Name:

CVE-2007-3149 (CCN-34910)

Assigned:2007-06-06
Published:2007-06-06
Updated:2020-01-21
Summary:sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings.
Note: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."
CVSS v3 Severity:5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
5.3 Medium (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
3.4 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Privileges
References:Source: CCN
Type: BugTraq Mailing List, Wed Jun 06 2007 - 20:57:25 CDT
Sudo: local root compromise with krb5 enabled

Source: MITRE
Type: CNA
CVE-2007-3149

Source: CCN
Type: SA26540
Sudo Kerberos 5 Security Bypass Vulnerability

Source: SECUNIA
Type: UNKNOWN
26540

Source: CCN
Type: Sudo Web site
Sudo Main Page

Source: CCN
Type: OSVDB ID: 37333
Sudo with Kerberos 5 Local Privilege Escalation

Source: BUGTRAQ
Type: UNKNOWN
20070607 Sudo: local root compromise with krb5 enabled

Source: BUGTRAQ
Type: UNKNOWN
20070607 MIT krb5: makes sudo authentication issue MUCH worse.

Source: BUGTRAQ
Type: UNKNOWN
20070607 Re: Sudo: local root compromise with krb5 enabled

Source: BID
Type: UNKNOWN
24368

Source: CCN
Type: BID-24368
Todd Miller Sudo Kerberos Authentication Local Authentication Bypass Weakness

Source: CONFIRM
Type: UNKNOWN
http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c

Source: XF
Type: UNKNOWN
sudo-kerberos-privilege-escalation(34910)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mit:kerberos_5:-:*:*:*:*:*:*:*
  • OR cpe:/a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    mit kerberos 5 -
    todd_miller sudo 1.6.8_p12