Bouncy Castle BC/BC-FJA RSA Key Pair Generator cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Bouncy Castle BC and BC-FJA. It has been rated as critical. This affects an unknown function of the component RSA Key Pair Generator. This manipulation causes cryptographic issue. This vulnerability is handled as CVE-2018-1000180. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Bouncy Castle BC and BC-FJA (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component RSA Key Pair Generator. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. This appears to be fixed in versions BC 1.60 beta 4 and later, BC-FJA 1.0.2 and later.

The bug was discovered 04/18/2018. The weakness was released 06/05/2018 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2018-1000180 since 05/21/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 48 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110599 (Fedora 27 : bouncycastle (2018-da9fe79871)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371529 (Oracle WebLogic Server Multiple Vulnerabilities (CPUJAN2019) (WebLogic Server Unix Authentication Record)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110599), EUVD (EUVD-2018-0718) and SecurityFocus (BID 93132†). Entries connected to this vulnerability are available at VDB-92299, VDB-129543, VDB-129545 and VDB-129557. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110599
Nessus Name: Fedora 27 : bouncycastle (2018-da9fe79871)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

09/23/2016 🔍
04/18/2018 +572 days 🔍
05/21/2018 +33 days 🔍
06/05/2018 +14 days 🔍
06/05/2018 +0 days 🔍
06/05/2018 +0 days 🔍
06/18/2018 +13 days 🔍
06/19/2018 +1 days 🔍
09/13/2025 +2643 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-da9fe79871
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1000180 (🔍)
GCVE (CVE): GCVE-0-2018-1000180
GCVE (VulDB): GCVE-100-118951
EUVD: 🔍

OVAL: 🔍

SecurityFocus: 93132 - Apache Derby CVE-2015-1832 XML External Entity Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 06/05/2018 22:02
Updated: 09/13/2025 11:18
Changes: 06/05/2018 22:02 (74), 02/15/2020 08:27 (6), 03/21/2023 15:11 (5), 03/21/2023 15:16 (1), 05/12/2025 21:15 (20), 09/13/2025 11:18 (2)
Complete: 🔍
Cache ID: 216:B3D:103

Be aware that VulDB is the high quality source for vulnerability data.

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