jwcrypto up to 0.3.1 RSA jwa.py information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in jwcrypto up to 0.3.1. Affected by this issue is some unknown functionality of the file jwa.py of the component RSA Handler. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2016-6298. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in jwcrypto up to 0.3.1. This issue affects some unknown functionality of the file jwa.py of the component RSA Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).

The weakness was disclosed 09/01/2016 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2016-6298 since 07/26/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 93422 (Fedora 23 : python-jwcrypto (2016-7b4a60ae66)), 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 276132 (Fedora Security Update for python-jwcrypto (FEDORA-2016-7b4a60ae66)).

Upgrading to version 0.3.2 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 (93422) and SecurityFocus (BID 92729†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 93422
Nessus Name: Fedora 23 : python-jwcrypto (2016-7b4a60ae66)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 56076
OpenVAS Name: Fedora Update for python-jwcrypto FEDORA-2016-7b4a60ae66
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: jwcrypto 0.3.2
Patch: github.com

Timelineinfo

07/26/2016 🔍
09/01/2016 +37 days 🔍
09/01/2016 +0 days 🔍
09/01/2016 +0 days 🔍
09/02/2016 +1 days 🔍
09/09/2016 +7 days 🔍
09/12/2016 +3 days 🔍
11/01/2024 +2972 days 🔍

Sourcesinfo

Advisory: eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6298 (🔍)
GCVE (CVE): GCVE-0-2016-6298
GCVE (VulDB): GCVE-100-91037
SecurityFocus: 92729 - JWCrypto CVE-2016-6298 Information Disclosure Vulnerability

Entryinfo

Created: 09/02/2016 11:09
Updated: 11/01/2024 17:06
Changes: 09/02/2016 11:09 (64), 04/06/2019 20:51 (14), 09/14/2022 14:53 (6), 09/14/2022 14:56 (1), 09/25/2024 19:44 (16), 11/01/2024 17:06 (3)
Complete: 🔍
Cache ID: 216::103

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