Vulnerability Name:

CVE-2016-9955 (CCN-122283)

Assigned:2016-12-03
Published:2016-12-03
Updated:2018-10-02
Summary:The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.
CVSS v3 Severity:6.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H)
5.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-20
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2016-9955

Source: BID
Type: Third Party Advisory, VDB Entry
94946

Source: CCN
Type: BID-94946
SimpleSAMLphp CVE-2016-9955 Security Bypass Vulnerability

Source: XF
Type: UNKNOWN
simplesamlphp-cve20169955-spoofing(122283)

Source: MLIST
Type: Third Party Advisory
[debian-lts-announce] 20180302 [SECURITY] [DLA 1297-1] simplesamlphp security update

Source: CCN
Type: SimpleSAMLphp Web site
Incorrect signature verification

Source: CONFIRM
Type: Vendor Advisory
https://simplesamlphp.org/security/201612-02

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-9955

Vulnerable Configuration:Configuration 1:
  • cpe:/a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:* (Version < 1.14.11)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:simplesamlphp:simplesamlphp:1.14.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201699550000000
    V
    		CVE-2016-9955 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-02-17
    oval:com.ubuntu.bionic:def:201699550000000
    V
    		CVE-2016-9955 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-02-16
    oval:com.ubuntu.artful:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 17.10 (artful) - medium.
    2017-02-16
    oval:com.ubuntu.trusty:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-02-16
    oval:com.ubuntu.bionic:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-02-16
    oval:com.ubuntu.xenial:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-02-16
    oval:com.ubuntu.cosmic:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 18.10 (cosmic) - medium.
    2017-02-16
    oval:com.ubuntu.cosmic:def:201699550000000
    V
    		CVE-2016-9955 on Ubuntu 18.10 (cosmic) - medium.
    2017-02-16
    oval:com.ubuntu.precise:def:20169955000
    V
    		CVE-2016-9955 on Ubuntu 12.04 LTS (precise) - medium.
    2017-02-16
    BACK
    simplesamlphp simplesamlphp *
    debian debian linux 7.0
    simplesamlphp simplesamlphp 1.14.10