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    CVE-2003-1109

    The Session Initiation Protocol (SIP) implementation in multiple Cisco products including IP Phone models 7940 and 7960, IOS versions in the 12.2 train, and Secure PIX 5.2.9 to 6.2.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite.

    Published:Dec 31, 2003
    Last Modified:Apr 16, 2026
    EPS:Mar 11, 2005
    EPSS Score:0.24694
    CVSS Score:7.5

    Affected Products

    Vendor
    Cisco
    Product
    Ios
    Vendor
    Cisco
    Product
    Ip Phone 7940
    Vendor
    Cisco
    Product
    Ip Phone 7960
    Vendor
    Cisco
    Product
    Pix Firewall Software

    Exploits

    http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://www.cert.org/advisories/CA-2003-06.html
    http://www.cisco.com/warp/public/707/cisco-sa-20030221-protos.shtml
    http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/
    http://www.kb.cert.org/vuls/id/528719
    http://www.securityfocus.com/bid/6904
    http://www.securitytracker.com/id?1006143
    http://www.securitytracker.com/id?1006144
    http://www.securitytracker.com/id?1006145
    https://exchange.xforce.ibmcloud.com/vulnerabilities/11379
    http://www.cert.org/advisories/CA-2003-06.html
    http://www.cisco.com/warp/public/707/cisco-sa-20030221-protos.shtml
    http://www.ee.oulu.fi/research/ouspg/protos/testing/c07/sip/
    http://www.kb.cert.org/vuls/id/528719
    http://www.securityfocus.com/bid/6904
    http://www.securitytracker.com/id?1006143
    http://www.securitytracker.com/id?1006144
    http://www.securitytracker.com/id?1006145
    https://exchange.xforce.ibmcloud.com/vulnerabilities/11379

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High