JVN#57728859
Movable Type XMLRPC API vulnerable to command injection
Overview
Movable Type XMLRPC API provided by Six Apart Ltd. contains a command injection vulnerability.
Products Affected
- Movable Type 7 r.5202 and earlier (Movable Type 7 Series)
- Movable Type Advanced 7 r.5202 and earlier (Movable Type Advanced 7 Series)
- Movable Type 6.8.6 and earlier (Movable Type 6 Series)
- Movable Type Advanced 6.8.6 and earlier (Movable Type Advanced 6 Series)
- Movable Type Premium 1.52 and earlier
- Movable Type Premium Advanced 1.52 and earlier
Description
Movable Type XMLRPC API provided by Six Apart Ltd. contains a command injection vulnerability (CWE-74).
Sending a specially crafted message by POST method to Movable Type XMLRPC API may allow arbitrary Perl script execution, and an arbitrary OS command may be executed through it.
According to the developer, it is unable to execute a command with an arbitrary value added to its argument, even if the vulnerability is exploited.
Impact
An arbitrary Perl script may be executed by a remote attacker. As a result, an arbitrary OS command may be executed.
Solution
Update the Software
Apply the appropriate update according to the information provided by the developer.
The developer has released the following updates that contain a fix for this vulnerability:
- Movable Type 7 r.5301 (Movable Type 7 Series)
- Movable Type Advanced 7 r.5301 (Movable Type Advanced 7 Series)
- Movable Type 6.8.7 (Movable Type 6 Series)
- Movable Type Advanced 6.8.7 (Movable Type Advanced 6 Series)
- Movable Type Premium 1.53
- Movable Type Premium Advanced 1.53
Applying workarounds may mitigate the impacts of this vulnerability.
The developer recommends applying the following mitigation to the products.
- Disabe XMLRPC API function of Movable Type
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Six Apart Ltd. | Vulnerable | 2022/08/24 | Six Apart Ltd. website |
References
-
Information-technology Promotion Agency, Japan (IPA)
Security Updates Available for Movable Type (JVN#57728859) (in Japanese)
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| 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) |
| 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
Osaka University of Economics reported this vulnerability to Six Apart Ltd. and coordinated. Six Apart Ltd. and JPCERT/CC published respective advisories in order to notify users of this vulnerability.
And almost at the same time, SHIGA TAKUMA of BroadBand Security, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with Six Apart Ltd. under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
JPCERT-AT-2022-0022 Alert Regarding Vulnerability in Movable Type XMLRPC API |
| JPCERT Reports |
|
| CERT Advisory |
|
| CPNI Advisory |
|
| TRnotes |
|
| CVE |
CVE-2022-38078 |
| JVN iPedia |
JVNDB-2022-000064 |
Update History
- 2022/08/24
- Information under the section [References] and [Other Information] was updated.