CVE-2021-27773 HCL Sametime is vulnerable to clickjacking
Medium 4.2
Published
Updated
Check this codebase for CVE-2021-27773 and fix it if it is affected.
What it is: CVE-2021-27773 is a medium-severity vulnerability in HCL Software Sametime, published on 12 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-27773 in the wild and no public exploit code.
Affected product: HCL Software Sametime. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2021-27773/ (Markdown: https://insights.sbomify.com/CVE-2021-27773/index.md)
Attackers can perform clickjacking attacks in HCL Sametime meeting chats, potentially tricking users into unintended actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-27773?
CVE-2021-27773 is a medium-severity vulnerability in HCL Software Sametime, published on 12 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
This vulnerability allows users to execute a clickjacking attack in the meeting's chat.
Which versions are affected by CVE-2021-27773?
It affects 1 product.
Products include Hcltech Sametime.
How do I fix CVE-2021-27773?
No fix has been published for CVE-2021-27773 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-27773 being exploited?
There is no known exploitation of CVE-2021-27773 in the wild and no public exploit code.
Other vulnerabilities in HCL Software Sametime
- CVE-2021-27771 HCL Sametime is susceptible a file transfer service vulnerability
- CVE-2021-27772 HCL Sametime is vulnerable to an information disclosure
- CVE-2021-27770 HCL Sametime is vulnerable to arbitrary HTTP requests
- CVE-2022-42446 HCL Sametime 12.0 and 12.0FP1 anonymous users have directory lookup access
- CVE-2023-50349 HCL Sametime is impacted by a Cross Site Request Forgery (CSRF) vulnerability
Sources
Also known as GHSA-rrwg-382g-w6j8.