Vulnerability Name:

CVE-2017-12870 (CCN-131382)

Assigned:2017-05-05
Published:2017-05-05
Updated:2017-09-06
Summary:SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2017-12870

Source: XF
Type: UNKNOWN
simplesamlphp-cve201712870-info-disc(131382)

Source: CCN
Type: SimpleSAMLphp Security Advisories 201704-01
Unauthenticated encryption in CBC mode

Source: CONFIRM
Type: Patch, Vendor Advisory
https://simplesamlphp.org/security/201704-01

Vulnerable Configuration:Configuration 1:
  • cpe:/a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:* (Version <= 1.14.12)

    • Configuration CCN 1:
  • cpe:/a:simplesamlphp:simplesamlphp:1.14.12:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:2017128700000000
    V
    		CVE-2017-12870 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-01
    oval:com.ubuntu.artful:def:201712870000
    V
    		CVE-2017-12870 on Ubuntu 17.10 (artful) - medium.
    2017-09-01
    oval:com.ubuntu.xenial:def:201712870000
    V
    		CVE-2017-12870 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-09-01
    oval:com.ubuntu.disco:def:2017128700000000
    V
    		CVE-2017-12870 on Ubuntu 19.04 (disco) - medium.
    2017-09-01
    oval:com.ubuntu.bionic:def:201712870000
    V
    		CVE-2017-12870 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-09-01
    oval:com.ubuntu.cosmic:def:2017128700000000
    V
    		CVE-2017-12870 on Ubuntu 18.10 (cosmic) - medium.
    2017-09-01
    oval:com.ubuntu.cosmic:def:201712870000
    V
    		CVE-2017-12870 on Ubuntu 18.10 (cosmic) - medium.
    2017-09-01
    oval:com.ubuntu.bionic:def:2017128700000000
    V
    		CVE-2017-12870 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-09-01
    oval:com.ubuntu.trusty:def:201712870000
    V
    		CVE-2017-12870 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-09-01
    BACK
    simplesamlphp simplesamlphp *
    simplesamlphp simplesamlphp 1.14.12