Vulnerability CVE-2017-10668
Published: 2017-06-30

Description:
A Padding Oracle exists in OSCI-Transport 1.2 as used in OSCI Transport Library 1.6.1 (Java) and OSCI Transport Library 1.6 (.NET). Under an MITM condition within the OSCI infrastructure, an attacker needs to send crafted protocol messages to analyse the CBC mode padding in order to decrypt the transport encryption.

See advisories in our WLB2 database:
Topic
Author
Date
High
OSCI-Transport Library 1.2 Padding Oracle / Signature Wrapping / XXE Injection
SEC Sonsult
02.07.2017

Type:

CWE-327

 (Use of a Broken or Risky Cryptographic Algorithm)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
XOEV -> Osci transport library 

 References:
http://blog.sec-consult.com/2017/06/german-e-government-details-vulnerabilities.html
http://seclists.org/fulldisclosure/2017/Jun/44
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