CVE-2018-0489 - Improper Verification of Cryptographic Signature

Severity

64%

Complexity

99%

Confidentiality

81%

Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4 on Windows and other products, mishandles digital signatures of user data, which allows remote attackers to obtain sensitive information or conduct impersonation attacks via crafted XML data. NOTE: this issue exists because of an incomplete fix for CVE-2018-0486.

Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4 on Windows and other products, mishandles digital signatures of user data, which allows remote attackers to obtain sensitive information or conduct impersonation attacks via crafted XML data. NOTE: this issue exists because of an incomplete fix for CVE-2018-0486.

CVSS 3.0 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

CVSS 2.0 Base Score 6.4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:N).

Demo Examples

Improper Verification of Cryptographic Signature

CWE-347

In the following code, a JarFile object is created from a downloaded file.


               
JarFile jf = new JarFile(f);

The JAR file that was potentially downloaded from an untrusted source is created without verifying the signature (if present). An alternate constructor that accepts a boolean verify parameter should be used instead.

Overview

Type

Debian Linux

First reported 6 years ago

2018-02-27 15:29:00

Last updated 6 years ago

2018-03-23 15:18:00

Affected Software

Debian Linux 7.0

7.0

Debian Linux 8.0 (Jessie)

8.0

Debian Linux 9.0

9.0

References

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-003.txt

Third Party Advisory

103172

Third Party Advisory, VDB Entry

1040435

Third Party Advisory, VDB Entry

[debian-lts-announce] 20180228 [SECURITY] [DLA 1296-1] xmltooling security update

Issue Tracking

https://shibboleth.net/community/advisories/secadv_20180227.txt

Patch, Vendor Advisory

DSA-4126

Third Party Advisory

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