FreeBSD : curl -- authentication buffer overflow vulnerability (96df5fd0-8900-11d9-aa18-0001020eed82)

medium Nessus Plugin ID 19038

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

Two iDEFENSE Security Advisories reports :

An exploitable stack-based buffer overflow condition exists when using NT Lan Manager (NTLM) authentication. The problem specifically exists within Curl_input_ntlm() defined in lib/http_ntlm.c.

Successful exploitation allows remote attackers to execute arbitrary code under the privileges of the target user. Exploitation requires that an attacker either coerce or force a target to connect to a malicious server using NTLM authentication.

An exploitable stack-based buffer overflow condition exists when using Kerberos authentication. The problem specifically exists within the functions Curl_krb_kauth() and krb4_auth() defined in lib/krb4.c.

Successful exploitation allows remote attackers to execute arbitrary code under the privileges of the target user. Exploitation requires that an attacker either coerce or force a target to connect to a malicious server using Kerberos authentication.

Solution

Update the affected package.

See Also

https://marc.info/?l=bugtraq&m=110902850731457

https://marc.info/?l=bugtraq&m=110902601221592

http://www.nessus.org/u?adece2d7

Plugin Details

Severity: Medium

ID: 19038

File Name: freebsd_pkg_96df5fd0890011d9aa180001020eed82.nasl

Version: 1.19

Type: local

Published: 7/13/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:curl, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/27/2005

Vulnerability Publication Date: 12/21/2004

Reference Information

CVE: CVE-2005-0490

BID: 12615, 12616