Vulnerabilities > CVE-2014-3360 - OS Command Injection vulnerability in Cisco IOS and IOS XE

047910
CVSS 7.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
COMPLETE
network
low complexity
cisco
CWE-78
nessus
NVD
Published: 2014-09-25
Updated: 2017-08-29

Summary

Cisco IOS 12.4 and 15.0 through 15.4 and IOS XE 3.1.xS, 3.2.xS, 3.3.xS, 3.4.xS, 3.5.xS, 3.6.xS, and 3.7.xS before 3.7.6S; 3.8.xS, 3.9.xS, and 3.10.xS before 3.10.1S; and 3.11.xS before 3.12S allow remote attackers to cause a denial of service (device reload) via a crafted SIP message, aka Bug ID CSCul46586.

Vulnerable Configurations

Part Description Count
OS
Cisco
46

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
  • Command Delimiters
    An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
  • Exploiting Multiple Input Interpretation Layers
    An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
  • Argument Injection
    An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
  • OS Command Injection
    In this type of an attack, an adversary injects operating system commands into existing application functions. An application that uses untrusted input to build command strings is vulnerable. An adversary can leverage OS command injection in an application to elevate privileges, execute arbitrary commands and compromise the underlying operating system.

Nessus

  • NASL familyCISCO
    NASL idCISCO-SA-20140924-SIP.NASL
    descriptionAccording to its self-reported version, the version of Cisco IOS running on the remote host is affected by a vulnerability in the Session Initiation Protocol (SIP) implementation due to improper handling of SIP messages. A remote attacker can exploit this issue by sending specially crafted SIP messages to cause the device to reload. Note that this issue only affects hosts configured to process SIP messages. SIP is not enabled by default on newer IOS versions.
    last seen2019-10-28
    modified2014-10-02
    plugin id78037
    published2014-10-02
    reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/78037
    titleCisco IOS Software SIP DoS (cisco-sa-20140924-sip)
    code
    #TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(78037);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id("CVE-2014-3360");
  script_bugtraq_id(70141);
  script_xref(name:"CISCO-BUG-ID", value:"CSCul46586");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20140924-sip");

  script_name(english:"Cisco IOS Software SIP DoS (cisco-sa-20140924-sip)");
  script_summary(english:"Checks the IOS version.");

  script_set_attribute(attribute:"synopsis", value:"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the version of Cisco IOS
running on the remote host is affected by a vulnerability in the
Session Initiation Protocol (SIP) implementation due to improper
handling of SIP messages. A remote attacker can exploit this issue by
sending specially crafted SIP messages to cause the device to reload.

Note that this issue only affects hosts configured to process SIP
messages. SIP is not enabled by default on newer IOS versions.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140924-sip
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00b78a3e");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewAlert.x?alertId=35611");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewAMBAlert.x?alertId=35259");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/bugsearch/bug/CSCul46586");

  script_set_attribute(attribute:"solution", value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20140924-sip.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/02");

  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
  script_family(english:"CISCO");

  script_dependencies("cisco_ios_version.nasl");
  script_require_keys("Host/Cisco/IOS/Version", "Settings/ParanoidReport");

  exit(0);
}

include("audit.inc");
include("cisco_func.inc");
include("cisco_kb_cmd_func.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

ver = get_kb_item_or_exit("Host/Cisco/IOS/Version");

app = "Cisco IOS";
cbi = "CSCul46586";
fixed_ver = NULL;

#12.4GC
if (ver == "12.4(22)GC1" || ver == "12.4(22)GC1a" || ver == "12.4(24)GC1" || ver == "12.4(24)GC3" || ver == "12.4(24)GC3a" || ver == "12.4(24)GC4" || ver == "12.4(24)GC5")
  fixed_ver = "Refer to the vendor.";
#12.4T
else if (ver == "12.4(22)T" || ver == "12.4(22)T1" || ver == "12.4(22)T2" || ver == "12.4(22)T3" || ver == "12.4(22)T4" || ver == "12.4(22)T5" || ver == "12.4(24)T" || ver == "12.4(24)T1" || ver == "12.4(24)T10" || ver == "12.4(24)T11" || ver == "12.4(24)T2" || ver == "12.4(24)T3" || ver == "12.4(24)T4" || ver == "12.4(24)T5" || ver == "12.4(24)T6" || ver == "12.4(24)T7" || ver == "12.4(24)T8" || ver == "12.4(24)T9")
  fixed_ver = "12.4(24)T3a, 12.4(24)T4a, or 12.4(24)T12";
#12.4YA
else if (ver == "12.4(20)YA" || ver == "12.4(20)YA1" || ver == "12.4(20)YA2" || ver == "12.4(20)YA3")
  fixed_ver = "12.4(24)T3a, 12.4(24)T4a, or 12.4(24)T12";
#12.4YB
else if (ver == "12.4(22)YB" || ver == "12.4(22)YB1" || ver == "12.4(22)YB2" || ver == "12.4(22)YB3" || ver == "12.4(22)YB4" || ver == "12.4(22)YB5" || ver == "12.4(22)YB6" || ver == "12.4(22)YB7" || ver == "12.4(22)YB8")
  fixed_ver = "Refer to the vendor.";
#15.0M
else if (ver == "15.0(1)M" || ver == "15.0(1)M1" || ver == "15.0(1)M10" || ver == "15.0(1)M2" || ver == "15.0(1)M3" || ver == "15.0(1)M4" || ver == "15.0(1)M5" || ver == "15.0(1)M6" || ver == "15.0(1)M7" || ver == "15.0(1)M8" || ver == "15.0(1)M9")
  fixed_ver = "15.0(1)M6a";
#15.0XA
else if (ver == "15.0(1)XA" || ver == "15.0(1)XA1" || ver == "15.0(1)XA2" || ver == "15.0(1)XA3" || ver == "15.0(1)XA4" || ver == "15.0(1)XA5")
  fixed_ver = "15.1(4)M9";
#15.1GC
else if (ver == "15.1(2)GC" || ver == "15.1(2)GC1" || ver == "15.1(2)GC2" || ver == "15.1(4)GC" || ver == "15.1(4)GC1")
  fixed_ver = "15.1(4)GC2";
#15.1M
else if (ver == "15.1(4)M" || ver == "15.1(4)M0a" || ver == "15.1(4)M0b" || ver == "15.1(4)M1" || ver == "15.1(4)M2" || ver == "15.1(4)M3" || ver == "15.1(4)M3a" || ver == "15.1(4)M4" || ver == "15.1(4)M5" || ver == "15.1(4)M6" || ver == "15.1(4)M7" || ver == "15.1(4)M8")
  fixed_ver = "15.1(4)M9";
#15.1T
else if (ver == "15.1(1)T" || ver == "15.1(1)T1" || ver == "15.1(1)T2" || ver == "15.1(1)T3" || ver == "15.1(1)T4" || ver == "15.1(1)T5" || ver == "15.1(2)T" || ver == "15.1(2)T0a" || ver == "15.1(2)T1" || ver == "15.1(2)T2" || ver == "15.1(2)T2a" || ver == "15.1(2)T3" || ver == "15.1(2)T4" || ver == "15.1(2)T5" || ver == "15.1(3)T" || ver == "15.1(3)T1" || ver == "15.1(3)T2" || ver == "15.1(3)T3" || ver == "15.1(3)T4")
  fixed_ver = "15.1(4)M9";
#15.1XB
else if (ver == "15.1(1)XB" || ver == "15.1(1)XB1" || ver == "15.1(1)XB2" || ver == "15.1(1)XB3" || ver == "15.1(4)XB4" || ver == "15.1(4)XB5" || ver == "15.1(4)XB5a" || ver == "15.1(4)XB6" || ver == "15.1(4)XB7" || ver == "15.1(4)XB8" || ver == "15.1(4)XB8a")
  fixed_ver = "15.1(4)M9";
#15.2GC
else if (ver == "15.2(1)GC" || ver == "15.2(1)GC1" || ver == "15.2(1)GC2" || ver == "15.2(2)GC" || ver == "15.2(3)GC" || ver == "15.2(3)GC1" || ver == "15.2(4)GC" || ver == "15.2(4)GC1" || ver == "15.2(4)GC2")
  fixed_ver = "15.2(4)M7";
#15.2GCA
else if (ver == "15.2(3)GCA" || ver == "15.2(3)GCA1")
  fixed_ver = "15.4(1)T2 or 15.4(2)T";
#15.2M
else if (ver == "15.2(4)M" || ver == "15.2(4)M1" || ver == "15.2(4)M2" || ver == "15.2(4)M3" || ver == "15.2(4)M4" || ver == "15.2(4)M5" || ver == "15.2(4)M6" || ver == "15.2(4)M6b")
  fixed_ver = "15.2(4)M7";
#15.2T
else if (ver == "15.2(1)T" || ver == "15.2(1)T1" || ver == "15.2(1)T2" || ver == "15.2(1)T3" || ver == "15.2(1)T3a" || ver == "15.2(1)T4" || ver == "15.2(2)T" || ver == "15.2(2)T1" || ver == "15.2(2)T2" || ver == "15.2(2)T3" || ver == "15.2(2)T4" || ver == "15.2(3)T" || ver == "15.2(3)T1" || ver == "15.2(3)T2" || ver == "15.2(3)T3" || ver == "15.2(3)T4")
  fixed_ver = "15.2(4)M7";
#15.2XB
else if (ver == "15.2(4)XB10")
  fixed_ver = "15.2(4)XB11";
#15.3M
else if (ver == "15.3(3)M" || ver == "15.3(3)M1" || ver == "15.3(3)M2" || ver == "15.3(3)M3")
  fixed_ver = "15.3(3)M4";
#15.3T
else if (ver == "15.3(1)T" || ver == "15.3(1)T1" || ver == "15.3(1)T2" || ver == "15.3(1)T3" || ver == "15.3(1)T4" || ver == "15.3(2)T" || ver == "15.3(2)T1" || ver == "15.3(2)T2" || ver == "15.3(2)T3")
  fixed_ver = "15.3(2)T4";
#15.4CG
else if (ver == "15.4(1)CG")
  fixed_ver = "15.4(1)CG1 or 15.4(2)CG";
#15.4T
else if (ver == "15.4(1)T" || ver == "15.4(1)T1")
  fixed_ver = "15.4(1)T2 or 15.4(2)T";

if (isnull(fixed_ver)) audit(AUDIT_INST_VER_NOT_VULN, app, ver);

# SIP check
# nb SIP can listen on TCP or UDP
override = FALSE;

if (get_kb_item("Host/local_checks_enabled"))
{
  flag = FALSE;

  # SIP UDP listening check
  # Example:
  # 17     0.0.0.0             0 --any--          5060   0   0    11   0
  buf = cisco_command_kb_item("Host/Cisco/Config/show_udp", "show udp");
  if (check_cisco_result(buf))
  {
    if (preg(multiline:TRUE, pattern:"^\s*(?:\S+\s+){4}5060\s+", string:buf)) flag = TRUE;
  }
  else if (cisco_needs_enable(buf)) override = TRUE;

  if (!flag && !override)
  {
    # SIP TCP listening check
    # Example:
    # 7F1277405E20  0.0.0.0.5061               *.*                         LISTEN
    # 7F127BBE20D8  0.0.0.0.5060               *.*                         LISTEN
    buf = cisco_command_kb_item("Host/Cisco/Config/show_tcp_brief_all", "show tcp brief all");
    if (check_cisco_result(buf))
    {
      if (preg(multiline:TRUE, pattern:"^\S+\s+\S+(506[01])\s+", string:buf)) flag = TRUE;
    }
    else if (cisco_needs_enable(buf)) override = TRUE;
  }

  if (!flag && !override) audit(AUDIT_HOST_NOT, "affected because SIP is not listening on TCP or UDP.");
}

if (report_verbosity > 0)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + 
    '\n';
  security_hole(port:0, extra:report+cisco_caveat(override));
}
else security_hole(port:0, extra:cisco_caveat(override));
  • NASL familyCISCO
    NASL idCISCO-SA-20140924-SIP-IOSXE.NASL
    descriptionAccording to its self-reported version, the version of Cisco IOS XE running on the remote host is affected by a vulnerability in the Session Initiation Protocol (SIP) implementation due to improper handling of SIP messages. A remote attacker can exploit this issue by sending specially crafted SIP messages to cause the device to reload. Note that this issue only affects hosts configured to process SIP messages. SIP is not enabled by default on newer IOS XE versions.
    last seen2019-10-28
    modified2014-10-02
    plugin id78036
    published2014-10-02
    reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/78036
    titleCisco IOS XE Software SIP DoS (cisco-sa-20140924-sip)
    code
    #TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(78036);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id("CVE-2014-3360");
  script_bugtraq_id(70141);
  script_xref(name:"CISCO-BUG-ID", value:"CSCul46586");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20140924-sip");

  script_name(english:"Cisco IOS XE Software SIP DoS (cisco-sa-20140924-sip)");
  script_summary(english:"Checks the IOS XE version.");

  script_set_attribute(attribute:"synopsis", value:"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the version of Cisco IOS XE
running on the remote host is affected by a vulnerability in the
Session Initiation Protocol (SIP) implementation due to improper
handling of SIP messages. A remote attacker can exploit this issue by
sending specially crafted SIP messages to cause the device to reload.

Note that this issue only affects hosts configured to process SIP
messages. SIP is not enabled by default on newer IOS XE versions.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140924-sip
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00b78a3e");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewAlert.x?alertId=35611");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewAMBAlert.x?alertId=35259");
  script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/bugsearch/bug/CSCul46586");

  script_set_attribute(attribute:"solution", value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20140924-sip.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios_xe");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/02");

  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
  script_family(english:"CISCO");

  script_dependencies("cisco_ios_xe_version.nasl");
  script_require_keys("Host/Cisco/IOS-XE/Version", "Settings/ParanoidReport");

  exit(0);
}

include("audit.inc");
include("cisco_func.inc");
include("cisco_kb_cmd_func.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

ver = get_kb_item_or_exit("Host/Cisco/IOS-XE/Version");

app = "Cisco IOS XE";
cbi = "CSCul46586";
fixed_ver = NULL;

if (
  ver =~ "^2\.[16]\.[0-2]$" ||
  ver =~ "^2\.2\.[1-3]$" ||
  ver =~ "^2\.3\.([02]|[01]t)$" ||
  ver =~ "^2\.4\.[01]$" ||
  ver == "2.5.0" ||
  ver =~ "^2\.6\." ||
  ver =~ "^3\.1\.[0-3]S$" ||
  ver =~ "^3\.[2356]\.[0-2]S$" ||
  ver =~ "^3\.4\.[0-6]S$" ||
  ver =~ "^3\.7\.[0-5]S$"
)
  fixed_ver = "3.7.6S";

else if (
  ver =~ "^3\.2\.[0-3]SE$" ||
  ver =~ "^3\.3\.[01]SE$"
)
  fixed_ver = "3.3.2SE";

else if (ver == "3.3.0XO")
  fixed_ver = "3.3.1XO";

else if (
  ver =~ "^3\.3\.[0-2]SG$" ||
  ver =~ "^3\.4\.[0-3]SG$"
)
  fixed_ver = "3.4.4SG";

else if (ver =~ "^3\.5\.[01]E$")
  fixed_ver = "3.5.2E";

else if (
  ver =~ "^3\.8\.[0-2]S$" ||
  ver =~ "^3\.9\.[0-2]S$" ||
  ver =~ "^3\.10.(0a|[0-3])S$"
)
  fixed_ver = "3.10.4S";

else if (ver =~ "^3\.11\.[12]S$")
  fixed_ver = "3.12.0S";

if (isnull(fixed_ver)) audit(AUDIT_INST_VER_NOT_VULN, app, ver);


# SIP check
# nb SIP can listen on TCP or UDP
override = FALSE;

if (get_kb_item("Host/local_checks_enabled"))
{
  flag = FALSE;

  # SIP UDP listening check
  # Example:
  # 17     0.0.0.0             0 --any--          5060   0   0    11   0
  buf = cisco_command_kb_item("Host/Cisco/Config/show_udp", "show udp");
  if (check_cisco_result(buf))
  {
    if (preg(multiline:TRUE, pattern:"^\s*(?:\S+\s+){4}5060\s+", string:buf)) flag = TRUE;
  }
  else if (cisco_needs_enable(buf)) override = TRUE;

  if (!flag && !override)
  {
    # SIP TCP listening check
    # Example:
    # 7F1277405E20  0.0.0.0.5061               *.*                         LISTEN
    # 7F127BBE20D8  0.0.0.0.5060               *.*                         LISTEN
    buf = cisco_command_kb_item("Host/Cisco/Config/show_tcp_brief_all", "show tcp brief all");
    if (check_cisco_result(buf))
    {
      if (preg(multiline:TRUE, pattern:"^\S+\s+\S+(506[01])\s+", string:buf)) flag = TRUE;
    }
    else if (cisco_needs_enable(buf)) override = TRUE;
  }

  if (!flag && !override) audit(AUDIT_HOST_NOT, "affected because SIP is not listening on TCP or UDP.");
}

if (report_verbosity > 0)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + 
    '\n';
  security_hole(port:0, extra:report+cisco_caveat(override));
}
else security_hole(port:0, extra:cisco_caveat(override));

References