VDB-95853 · CVE-2016-7036 · BID 95845

python-jose up to 1.3.1 HMAC Key 7pk time and state

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6$0-$5k0.00

Summaryinfo

A vulnerability identified as very critical has been detected in python-jose up to 1.3.1. Affected is an unknown function of the component HMAC Key Handler. Performing a manipulation results in 7pk time and state. This vulnerability was named CVE-2016-7036. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in python-jose up to 1.3.1 (Programming Language Software). This affects some unknown functionality of the component HMAC Key Handler. The manipulation with an unknown input leads to a 7pk time and state vulnerability. CWE is classifying the issue as CWE-361. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

The bug was discovered 01/23/2017. The weakness was presented 01/23/2017 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2016-7036 since 08/23/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/14/2026).

Upgrading to version 1.3.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95845†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk time and state
CWE: CWE-361
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: python-jose 1.3.2
Patch: github.com

Timelineinfo

08/23/2016 🔍
01/23/2017 +153 days 🔍
01/23/2017 +0 days 🔍
01/23/2017 +0 days 🔍
01/24/2017 +1 days 🔍
01/24/2017 +0 days 🔍
05/14/2026 +3397 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-7036 (🔍)
GCVE (CVE): GCVE-0-2016-7036
GCVE (VulDB): GCVE-100-95853
SecurityFocus: 95845 - python-jose CVE-2016-7036 Unspecified Security Vulnerability
OSVDB: - CVE-2016-7036 - Python-jose - HMAC Key Issue

Entryinfo

Created: 01/24/2017 08:33
Updated: 05/14/2026 15:34
Changes: 01/24/2017 08:33 (63), 11/03/2022 09:39 (5), 05/14/2026 15:34 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!