Vulnerabilities > CVE-2013-2220 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Radius Extension Project Radius

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
radius-extension-project
php
CWE-119
nessus

Summary

Buffer overflow in the radius_get_vendor_attr function in the Radius extension before 1.2.7 for PHP allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large Vendor Specific Attributes (VSA) length value.

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.

Nessus

  • NASL familyMandriva Local Security Checks
    NASL idMANDRIVA_MDVSA-2013-192.NASL
    descriptionA security vulnerability was discovered and fixed in php-radius. Fix a security issue in radius_get_vendor_attr() by enforcing checks of the VSA length field against the buffer size (CVE-2013-2220). The updated packages have been upgraded to the 1.2.7 version which is not affected by this issue.
    last seen2020-06-01
    modified2020-06-02
    plugin id67137
    published2013-07-03
    reporterThis script is Copyright (C) 2013-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/67137
    titleMandriva Linux Security Advisory : php-radius (MDVSA-2013:192)
    code
    #%NASL_MIN_LEVEL 80502
    
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Mandriva Linux Security Advisory MDVSA-2013:192. 
    # The text itself is copyright (C) Mandriva S.A.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(67137);
      script_version("1.8");
      script_cvs_date("Date: 2019/08/02 13:32:55");
    
      script_cve_id("CVE-2013-2220");
      script_bugtraq_id(60845);
      script_xref(name:"MDVSA", value:"2013:192");
    
      script_name(english:"Mandriva Linux Security Advisory : php-radius (MDVSA-2013:192)");
      script_summary(english:"Checks rpm output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Mandriva Linux host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "A security vulnerability was discovered and fixed in php-radius.
    
    Fix a security issue in radius_get_vendor_attr() by enforcing checks
    of the VSA length field against the buffer size (CVE-2013-2220).
    
    The updated packages have been upgraded to the 1.2.7 version which is
    not affected by this issue."
      );
      # http://pecl.php.net/package-changelog.php?package=radius&release=1.2.7
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?f6948140"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected php-radius package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:php-radius");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2013/07/02");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/03");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2013-2019 Tenable Network Security, Inc.");
      script_family(english:"Mandriva Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
    if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
    
    
    flag = 0;
    if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"php-radius-1.2.7-1.mbs1")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2726.NASL
    descriptionA buffer overflow has been discovered in the Radius extension for PHP. The function handling Vendor Specific Attributes assumed that the attributes given would always be of valid length. An attacker could use this assumption to trigger a buffer overflow.
    last seen2020-03-17
    modified2013-07-28
    plugin id69083
    published2013-07-28
    reporterThis script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/69083
    titleDebian DSA-2726-1 : php-radius - buffer overflow