CVE-2008-3234 : Detail

CVE-2008-3234

A01-Broken Access Control
0.99%V3
Network
2008-07-18
14h00 +00:00
2017-09-28
10h57 +00:00
CVE.org
NVD
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CVE Descriptions

sshd in OpenSSH 4 on Debian GNU/Linux, and the 20070303 OpenSSH snapshot, allows remote authenticated users to obtain access to arbitrary SELinux roles by appending a :/ (colon slash) sequence, followed by the role name, to the username.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Metrics

Metrics Score Severity CVSS Vector Source
V2 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 6094

Publication date : 2008-07-16 22h00 +00:00
Author : eliteboy
EDB Verified : Yes

/* Debian (maybe other derivates |KUDUBUTUNTU|) OpenSSH Remote -=Authenticated=- SELinux Privilege Elevation *** Fedora/RHEL Linux should be tested because it _MAY_ contain the same vulnerability *** in it's OpenSSH patches in a time slice. Latest OpenSSH should not be vulnerable. Older Debian Releases may. **** One vulnerable example is "openssh-SNAP-20070303.tar.gz", currently reachable at **** ftp://ftp.bit.nl/mirror/openssh/openssh-SNAP-20070303.tar.gz **** *** See the "Diff Patch" by Debian: *** + authctxt->role = role ? xstrdup(role) : NULL; **** Where the role is defined in the username after a forward slash '/' **** So anyone can set arbritrary SELinux roles, when OpenSSH is configured with --with-selinux - **** What is a common configuration nowadays. **** For the kids: ***** ssh -lusername:[style]/<arbritrary SELinux role> host ***** ssh -p2222 -lusername:/wishedrole 127.0.0.1 **** ':' means [style] -> [[not relevant]] '/'<arbritrary SELinux role> is the specified SELinux role. **** **** This seams to be a bug jailed in some distros because of legacy code. **** **** 'Exploit' found and delivered by Kingcope. ***//Želiteb0yŽ// **** CHEERIO ****/ REM blablablaIHAVEPRETTYIDEAHOWSELINUXRUNSWORKSORWHATEVERblablabla # milw0rm.com [2008-07-17]

Products Mentioned

Configuraton 0

Openbsd>>Openssh >> Version 4.0

Debian>>Debian_linux >> Version *

References

https://www.exploit-db.com/exploits/6094
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securityfocus.com/bid/30276
Tags : vdb-entry, x_refsource_BID