Published:2019/11/13  Last Updated:2019/11/13

JVN#65280626
Movable Type vulnerable to open redirect

Overview

Movable Type contains an open redirect vulnerability.

Products Affected

  • Movable Type 7 r.4602 (7.1.3) and earlier (Movable Type 7)
  • Movable Type 6.5.0 and 6.5.1 (Movable Type 6.5)
  • Movable Type 6.3.9 and earlier (Movable Type 6.3.x, 6.2.x, 6.1.x, 6.0.x)
  • Movable Type Advanced 7 r.4602 (7.1.3) and earlier (Movable Type 7)
  • Movable Type Advanced 6.5.0 and 6.5.1 (Movable Type 6.5)
  • Movable Type Advanced 6.3.9 and earlier (Movable Type 6.3.x, 6.2.x, 6.1.x, 6.0.x)
  • Movable Type Premium 1.24 and earlier (Movable Type Premium)
  • Movable Type Premium (Advanced Edition) 1.24 and earlier (Movable Type Premium)

Description

Movable Type provided by Six Apart Ltd. contains an open redirect vulnerability (CWE-601).

Impact

When accessing a specially crafted URL, the user may be redirected to an arbitrary website. As a result, the user may become a victim of a phishing attack.

Solution

Update the Software
Update the software to the latest version according to the information provided by the developer.
The developer states that the support for Movable Type 5.x and earlier versions has been ended, thus verification on impacts which may be caused by this vulnerability is not conducted and any countermeasures for this vulnerability are not provided.  Therefore the developer recommends users to upgrade the software to the supported versions, such as Movable Type 6.5 or 7.
 

Vendor Status

Vendor Status Last Update Vendor Notes
Six Apart Ltd. Vulnerable 2019/11/13 Six Apart Ltd. website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Base Score: 4.7
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:H/Au:N/C:N/I:P/A:N
Base Score: 2.6
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Credit

Hidetomo Hosono of EG Secure Solutions Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2019-6025
JVN iPedia JVNDB-2019-000069