Vulnerability Name:

CVE-2016-8738 (CCN-132455)

Assigned:2016-10-18
Published:2016-10-18
Updated:2018-07-01
Summary:In Apache Struts 2.5 through 2.5.5, if an application allows entering a URL in a form field and the built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2016-8738

Source: BID
Type: Third Party Advisory, VDB Entry
94657

Source: CCN
Type: BID-94657
Apache Struts CVE-2016-8738 Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
apache-struts-cve20168738-dos(132455)

Source: CONFIRM
Type: UNKNOWN
https://security.netapp.com/advisory/ntap-20180629-0003/

Source: CCN
Type: Apache Struts 2 Documentation S2-044
Possible DoS attack when using URLValidator

Source: CONFIRM
Type: Mitigation, Patch, Vendor Advisory
https://struts.apache.org/docs/s2-044.html

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-8738

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apache:struts:2.5:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.2:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.3:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.4:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.5:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:apache:struts:2.5:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.5:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.2:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.16:*:*:*:*:*:*:*
  • OR cpe:/a:apache:struts:2.5.4:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.trusty:def:20168738000
    V
    CVE-2016-8738 on Ubuntu 14.04 LTS (trusty) - untriaged.
    2017-09-20
    BACK
    apache struts 2.5
    apache struts 2.5.1
    apache struts 2.5.2
    apache struts 2.5.3
    apache struts 2.5.4
    apache struts 2.5.5
    apache struts 2.5
    apache struts 2.5.5
    apache struts 2.5.1
    apache struts 2.5.2
    apache struts 2.5.16
    apache struts 2.5.4