Vulnerability Name:

CVE-2018-5382 (CCN-140465)

Assigned:2018-03-19
Published:2018-03-19
Updated:2022-04-20
Summary:The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type "BKS-V1" was introduced in 1.49. It should be noted that the use of "BKS-V1" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself.
CVSS v3 Severity:4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
4.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)
3.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
3.2 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-354
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2018-5382

Source: CCN
Type: US-CERT VU#306792
Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions

Source: BID
Type: Third Party Advisory, VDB Entry
103453

Source: CCN
Type: BID-103453
Bouncy Castle BKS-V1 CVE-2018-5382 Security Weakness

Source: REDHAT
Type: Third Party Advisory
RHSA-2018:2927

Source: XF
Type: UNKNOWN
bouncy-castle-cve20185382-info-disc(140465)

Source: CCN
Type: SEI Insights CERT/CC Blog, March 19, 2018
The Curious Case of the Bouncy Castle BKS Passwords

Source: CCN
Type: Bouncy Castle Web site
Bouncy Castle

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.bouncycastle.org/releasenotes.html

Source: CCN
Type: IBM Security Bulletin 2016006 (Security Guardium)
IBM Security Guardium is affected by a Bouncy Castle vulnerability

Source: CCN
Type: IBM Security Bulletin 6320835 (Security Guardium Data Encryption)
Multiple Vulnerabilities in IBM Guardium Data Encryption (GDE)

Source: CCN
Type: IBM Security Bulletin 6494697 (Tivoli Business Service Manager)
Multiple vulnerabilities in Bouncy Castle Java Cryptography affect IBM Tivoli Business Manager

Source: CCN
Type: IBM Security Bulletin 960296 (Security Guardium Big Data Intelligence)
IBM Security Guardium Big Data Intelligence is affected by a Using Components with Known Vulnerabilities vulnerability

Source: CERT-VN
Type: Third Party Advisory, US Government Resource
VU#306792

Source: MISC
Type: Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:*:*:*:*:*:*:*:* (Version <= 1.49)

    • Configuration 2:
  • cpe:/a:redhat:satellite:6.4:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:satellite_capsule:6.4:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:bouncycastle:legion-of-the-bouncy-castle:1.46:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:security_guardium:9.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_guardium:9.1:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_guardium:9.5:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:tivoli_business_service_manager:6.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_guardium_big_data_intelligence:1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:security_guardium_data_encryption:3.0.0.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20185382000
    V
    		CVE-2018-5382 on Ubuntu 17.10 (artful) - medium.
    2018-04-16
    oval:com.ubuntu.trusty:def:20185382000
    V
    		CVE-2018-5382 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-04-16
    oval:com.ubuntu.xenial:def:20185382000
    V
    		CVE-2018-5382 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-04-16
    oval:com.ubuntu.xenial:def:201853820000000
    V
    		CVE-2018-5382 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-04-16
    BACK
    bouncycastle legion-of-the-bouncy-castle-java-crytography-api *
    redhat satellite 6.4
    redhat satellite capsule 6.4
    bouncycastle legion-of-the-bouncy-castle 1.46
    ibm security guardium 9.0
    ibm security guardium 9.1
    ibm security guardium 9.5
    ibm tivoli business service manager 6.2.0
    ibm security guardium big data intelligence 1.0
    ibm security guardium data encryption 3.0.0.2