CVE-2018-18689 Other in n/a
Attackers can bypass PDF signature validation via ByteRange and xref manipulations, affecting multiple PDF reader applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-18689?
CVE-2018-18689 is a medium-severity vulnerability in Foxitsoftware Foxit Reader, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, a Signature Wrapping vulnerability exists in multiple products. An attacker can use /ByteRange and xref manipulations that are not detected by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects eXpert PDF 12 Ultimate, Expert PDF Reader, Nitro Pro, Nitro Reader, PDF Architect 6, PDF Editor 6 Pro, PDF Experte 9 Ultimate, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, PDF-XChange Editor and Viewer, Perfect PDF 10 Premium, Perfect PDF Reader, Soda PDF, and Soda PDF Desktop.
Weakness: CWE-347
Which versions are affected by CVE-2018-18689?
It affects 17 products.
Products include Avanquest Expert Pdf Ultimate, Avanquest Pdf Experte Ultimate, Foxitsoftware Foxit Reader, Gonitro Nitro Pro, Gonitro Nitro Reader, Iskysoft Pdf Editor 6 and 11 more.
How do I fix CVE-2018-18689?
No fix has been published for CVE-2018-18689 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-18689 being exploited?
There is no known exploitation of CVE-2018-18689 in the wild and no public exploit code.
Sources
Also known as GHSA-wmqc-jfc8-pfm5.