Vulnerabilities > CVE-2007-4004 - Buffer Errors vulnerability in IBM AIX 5.2.0/5.3

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
ibm
CWE-119
nessus
exploit available
NVD
Published: 2007-07-26
Updated: 2017-07-29

Summary

Buffer overflow in the ftp client in IBM AIX 5.3 SP6 and 5.2.0 allows local users to execute arbitrary code via unspecified vectors that trigger the overflow in a gets function call. NOTE: the client is setuid root on AIX, so this issue crosses privilege boundaries.

Vulnerable Configurations

Part Description Count
OS
Ibm
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Exploit-Db

descriptionIBM AIX 5.2/5.3 FTP Client Local Buffer Overflow Vulnerability. CVE-2007-4004. Local exploit for aix platform
idEDB-ID:30400
last seen2016-02-03
modified2007-07-26
published2007-07-26
reporterqaaz
sourcehttps://www.exploit-db.com/download/30400/
titleIBM AIX 5.2/5.3 FTP Client Local Buffer Overflow Vulnerability

Nessus

  • NASL familyAIX Local Security Checks
    NASL idAIX_U812065.NASL
    descriptionThe remote host is missing AIX PTF U812065, which is related to the security of the package bos.net.tcp.client.
    last seen2020-06-01
    modified2020-06-02
    plugin id28980
    published2007-12-03
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/28980
    titleAIX 5.2 TL 10 : bos.net.tcp.client (U812065)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were extracted
# from AIX Security PTF U812065. The text itself is copyright (C)
# International Business Machines Corp.
#

include("compat.inc");

if (description)
{
  script_id(28980);
  script_version ("1.6");
  script_cvs_date("Date: 2019/09/16 14:12:48");

  script_cve_id("CVE-2007-4004", "CVE-2007-4217", "CVE-2007-4622", "CVE-2007-4623");

  script_name(english:"AIX 5.2 TL 10 : bos.net.tcp.client (U812065)");
  script_summary(english:"Check for PTF U812065");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote AIX host is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is missing AIX PTF U812065, which is related to the
security of the package bos.net.tcp.client."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ01812"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05017"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05066"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05487"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install the appropriate missing security-related fix."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:aix:5.2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/07/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/07/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/12/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"AIX Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AIX/oslevel", "Host/AIX/version", "Host/AIX/lslpp");

  exit(0);
}



include("audit.inc");
include("global_settings.inc");
include("aix.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if ( ! get_kb_item("Host/AIX/version") ) audit(AUDIT_OS_NOT, "AIX");
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);

flag = 0;

if ( aix_check_patch(ml:"520010", patch:"U812065", package:"bos.net.tcp.client.5.2.0.109") < 0 ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:aix_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyAIX Local Security Checks
    NASL idAIX_U812719.NASL
    descriptionThe remote host is missing AIX PTF U812719, which is related to the security of the package bos.net.tcp.client.
    last seen2020-06-01
    modified2020-06-02
    plugin id29051
    published2007-12-03
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29051
    titleAIX 5.3 TL 6 : bos.net.tcp.client (U812719)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were extracted
# from AIX Security PTF U812719. The text itself is copyright (C)
# International Business Machines Corp.
#

include("compat.inc");

if (description)
{
  script_id(29051);
  script_version ("1.5");
  script_cvs_date("Date: 2019/09/16 14:12:48");

  script_cve_id("CVE-2007-4004", "CVE-2007-4217", "CVE-2007-4623");

  script_name(english:"AIX 5.3 TL 6 : bos.net.tcp.client (U812719)");
  script_summary(english:"Check for PTF U812719");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote AIX host is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is missing AIX PTF U812719, which is related to the
security of the package bos.net.tcp.client."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ01813"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05053"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05065"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www-01.ibm.com/support/docview.wss?uid=isg1IZ05488"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install the appropriate missing security-related fix."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:aix:5.3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/07/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/07/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/12/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"AIX Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AIX/oslevel", "Host/AIX/version", "Host/AIX/lslpp");

  exit(0);
}



include("audit.inc");
include("global_settings.inc");
include("aix.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if ( ! get_kb_item("Host/AIX/version") ) audit(AUDIT_OS_NOT, "AIX");
if ( ! get_kb_item("Host/AIX/lslpp") ) audit(AUDIT_PACKAGE_LIST_MISSING);

flag = 0;

if ( aix_check_patch(ml:"530006", patch:"U812719", package:"bos.net.tcp.client.5.3.0.65") < 0 ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:aix_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 25077 CVE(CAN) ID: CVE-2007-4004 IBM AIX是一款商业性质的UNIX操作系统。 AIX FTP客户端程序实现上存在缓冲区溢出漏洞，本地攻击者可能利用此漏洞提升自己的权限。 AIX操作系统中所捆绑的FTP程序没有正确地处理对gets()函数的调用。gets()函数用于将标准输入的数据读取到缓冲区，但没有指定所读入缓冲区的最大大小，因此可能导致多个溢出漏洞。FTP程序是以root用户权限运行的，任何本地用户都可以执行。至少有一个漏洞会导致可利用的栈溢出。 IBM AIX 5.3 IBM AIX 5.2 临时解决方法： * 删除该二进制程序的setuid位。 厂商补丁： IBM --- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： <a href="http://www14.software.ibm.com/webapp/set2/abl/fixinfo?release=52&amp;b=520_0-10-02" target="_blank">http://www14.software.ibm.com/webapp/set2/abl/fixinfo?release=52&amp;b=520_0-10-02</a> <a href="http://www14.software.ibm.com/webapp/set2/abl/fixinfo?release=53&amp;b=530_0-06-02" target="_blank">http://www14.software.ibm.com/webapp/set2/abl/fixinfo?release=53&amp;b=530_0-06-02</a>
idSSV:2043
last seen2017-11-19
modified2007-07-28
published2007-07-28
reporterRoot
titleIBM AIX FTP客户端本地溢出漏洞

References