+44 (0)203 88 020 88

Menu

Search

Cyber Security News & Articles

 

Cyber Security
News & Articles

Trusted Cyber Security Experts
25+ Years Industry Experience
Ethical, Professional & Pragmatic

Critical Atlassian Bitbucket Vulnerability

A critical vulnerability has been identified in multiple versions of Atlassian’s Bitbucket Server and Bitbucket Data Center. A recent advisory released by Bitbucket Support explains that all versions after 6.10.17, including 7.0.0 and later, have been affected by this flaw. However, this vulnerability is not present in Atlassian Cloud sites, so users who access Bitbucket online using the Atlassian-hosted site bitbucket.org are not affected. This flaw has been given a ‘critical’ severity rating, and a CVSS score of 9.9/10. 

Tracked as CVE-2022-36804, this command injection vulnerability could allow remote attackers to execute arbitrary code. The flaw is found in multiple API endpoints of the server and data centre, where the Bitbucket application communicates with the web. To exploit this vulnerability, attackers need to gain access to a public or private Bitbucket repository, with read permissions. Attackers can then send a malicious HTTP request to the vulnerable endpoint, allowing them to execute arbitrary code.  

An official patch has been released by Atlassian, so users are encouraged to update to one of these fixed versions as soon as possible. Fixed versions include 7.6.17, 7.17.10, 7.21.4, 8.0.3, 8.1.3, 8.2.2, 8.3.1, and any newer versions released. For any users who are unable to immediately apply an update, a temporary step can be taken to mitigate the risk of this vulnerability being exploited. Users can turn off public repositories globally, by navigating to the bitbucket.properties file in the home directory, and setting the feature.public.access property to feature.public.access=false. However, this is not a permanent or complete fix, as this only prevents unauthenticated attackers from performing this exploit. Attackers with an authorised user account could still perform this attack with this mitigation in place, so the best protection against exploit of this vulnerability is to apply the most recent updates.  

On the 25th August, the security researcher who discovered this vulnerability has stated they will release proof of concept (PoC) for an exploit of this flaw “in 30 days”. When the PoC is released, an increase in exploitation of this flaw is expected, as more malicious actors will  have access to the information needed to perform the attack. Because of this, users should apply an official update, or take the suggested mitigation steps as soon as possible, and before this 30-day window closes. 

 

 

Subscribe to our monthly newsletter today

If you’d like to stay up-to-date with the latest cyber security news and articles from our technical team, you can sign up to our monthly newsletter. 

We hate spam as much as you do, so we promise not to bombard you with emails. We’ll send you a single, curated email each month that contains all of our cyber security news and articles for that month.

Why Choose SecureTeam?

Customer Testimonials

“We were very impressed with the service, I will say, the vulnerability found was one our previous organisation had not picked up, which does make you wonder if anything else was missed.”

Aim Ltd Chief Technology Officer (CTO)

"Within a very tight timescale, SecureTeam managed to deliver a highly professional service efficiently. The team helped the process with regular updates and escalation where necessary. Would highly recommend"

IoT Solutions Group Limited Chief Technology Officer (CTO) & Founder

“First class service as ever. We learn something new each year! Thank you to all your team.”

Royal Haskoning DHV Service Delivery Manager

“We’ve worked with SecureTeam for a few years to conduct our testing. The team make it easy to deal with them; they are attentive and explain detailed reports in a jargon-free way that allows the less technical people to understand. I wouldn’t work with anyone else for our cyber security.”

Capital Asset Management Head of Operations

“SecureTeam provided Derbyshire's Education Data Hub with an approachable and professional service to ensure our schools were able to successfully certify for Cyber Essentials. The team provided a smooth end-to-end service and were always on hand to offer advice when necessary.”

Derbyshire County Council Team Manager Education Data Hub

“A very efficient, professional, and friendly delivery of our testing and the results. You delivered exactly what we asked for in the timeframe we needed it, while maintaining quality and integrity. A great job, done well.”

AMX Solutions IT Project Officer

“We were very pleased with the work and report provided. It was easy to translate the provided details into some actionable tasks on our end so that was great. We always appreciate the ongoing support.”

Innovez Ltd Support Officer

Get in touch today

If you’d like to see how SecureTeam can take your cybersecurity posture to the next level, we’d love to hear from you, learn about your requirements and then send you a free quotation for our services.

Our customers love our fast-turnaround, “no-nonsense” quotations – not to mention that we hate high-pressure sales tactics as much as you do.

We know that every organisation is unique, so our detailed scoping process ensures that we provide you with an accurate quotation for our services, which we trust you’ll find highly competitive.

Get in touch with us today and a member of our team will be in touch to provide you with a quotation. 

0

No products in the basket.

No products in the basket.