JVN#61247051
OpenSSL improper handling of Change Cipher Spec message
Overview
OpenSSL improperly handles Change Cipher Spec message in the initial SSL/TLS handshake.
Products Affected
It is confirmed that the SSL/TLS communication between a server and a
client using the following vulnerable OpenSSL versions is affected.
Server:
- OpenSSL 1.0.1g and earlier
- OpenSSL 1.0.1g and earlier
- OpenSSL 1.0.0l and earlier
- OpenSSL 0.9.8y and earlier
Description
OpenSSL contains a flaw in the implementation of the Change Cipher Spec protocol that allows a MITM (man-in-the-middle) attacker to force a server and a
client to use easily guessable cryptgraphic key material during the initial SSL/TLS handshake (CWE-325).
Impact
SSL/TLS communication between the server and the client can be decrypted or altered by the MITM attacker.
Solution
Update the software
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| FUJITSU LIMITED | Vulnerable | 2014/10/27 | |
| Hitachi | Vulnerable, investigating | 2014/06/06 | |
| MIRACLE LINUX CORPORATION | Vulnerable | 2014/06/09 | |
| NEC Corporation | Vulnerable, investigating | 2015/10/21 | |
| TOSHIBA TEC CORPORATION | Vulnerable | 2014/06/06 | |
| Yokogawa Electric Corporation | Vulnerable | 2014/08/26 |
| Vendor | Link |
| OpenSSL Project | OpenSSL Security Advisory [05 Jun 2014] SSL/TLS MITM vulnerability (CVE-2014-0224) |
| Tarballs |
References
-
Lepidum Co. Ltd.
CCS Injection Vulnerability -
Lepidum Co. Ltd.
How I discovered CCS Injection Vulnerability (CVE-2014-0224) -
Mark J Cox
Here is the timeline from my (OpenSSL) perspective for the recent CCS Injection (MITM) vulnerability as well as the other flaws being fixed today -
CERT Vulnerability Note VU#978508
OpenSSL is vulnerable to a man-in-the-middle attack -
NCSC-FI Haavoittuvuustiedote 075/2014
Haavoittuvuuksia OpenSSL-kirjastossa
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2014.06.06 (CVSS Base Metrics)
| Measures | Severity | Description | ||
|---|---|---|---|---|
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) | A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable". |
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) | Specialized access conditions exist. |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) | Authentication is not required to exploit the vulnerability. |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) | There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained. |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) | Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited. |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) | There is no impact to the availability of the system. |
Base Score:4.0
Credit
KIKUCHI Masashi of Lepidum Co. Ltd. reported this vulnerability to JPCERT/CC.
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-2014-0224 |
| JVN iPedia |
JVNDB-2014-000048 |
Update History
- 2014/06/06
- FUJITSU LIMITED update status
- 2014/06/06
- Hitachi update status
- 2014/06/09
- MIRACLE LINUX CORPORATION update status
- 2014/06/09
- MIRACLE LINUX CORPORATION update status
- 2014/06/13
- Yokogawa Electric Corporation update status
- 2014/08/26
- Yokogawa Electric Corporation update status
- 2014/10/27
- FUJITSU LIMITED update status
- 2015/10/22
- NEC Corporation update status