when you open a pdf file with adobe reader with signatures to verify via “ocsp tipki it” the program crashes. if i disable norton smart firewall this does not happen. What parameters do i have to change to solve it?
and adobe reader version is up-to-date? → v24.005.20320
yes latest version. in desperation I also uninstalled and reinstalled
Adobe Acrobat Reader free?
and Adobe Acrobat Reader free is set as your default viewer?
yes
as test: installed Adobe Reader free → set default → call .pdf file → no crash my side
any Adobe Trials or other Adobe programs
I’m not familiar with “signatures to verify” via ocsp.tipki.it
pdf without signature all ok. For those with signature, reader proceeds to a signature check. If smart firewall is active the program blocks, if I disable it no problem
Thanks anyway for your availability
Oh okay…Thanks…and no prompt from Norton pointing to cause?
Security History → Smart Firewall?
and you’ve reset Norton Smart Firewall?
meaning Norton blocks ocsp.tipki.it?
is ocsp.tipki.it an installed program/service or a website that’s accessed?
no report from smart firewall
ocsp… is a website
Sorry, I’m not familiar.
website?
So, Norton crashes or Adobe reader crashes?
Can you use browser .pdf reader?
Does changing default browser change anything?
https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol
https://www.techtarget.com/searchsecurity/definition/OCSP
Lets ask @SoulAsylum
adobe crash
use program adobe reader
don’t change anything
as test: signed, initialed & email’d .pdf doc with request for signature → received → signed, saved and opened → with no crash
Sorry, I’m not reproducing your scenario.
the file is not signed via adobe. the document is drawn up by a public administration and the electronic signature is affixed to the document via authorized companies. In Italy it works like this to give a legal and certain value to the document. Before the norton update everything worked perfectly. Now if smart firewall is enabled, adobe reader blocks, if smart firewall is disabled, everything works.
Okay…Thanks…Sorry, I’m not able to reproduce your scenario.
maybe, contact support and offer to send debug logs
So, Adobe reader crashes when trying to verify the signature via OCSP?
yes
and you’ve reviewed Adobe → Preferences → Security? → Security (Enhanced)? → Signatures?
and you’ve tried excluding Adobe within Norton…as test?
https://helpx.adobe.com/acrobat/using/validating-digital-signatures.html
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Oh okay…so, signature is not verified within Adobe.
Adobe reader crashes when trying to verify the signature via OCSP and OCSP is an online resource.
Norton Smart Firewall does not report event… despite Norton Smart Firewall appears not happy with some OCSP traffic…because with Smart Firewall off = no crash.
I am also experiencing same issue - I couldn’t find a solution in the text. Has this been resolved? How?
It is a generic problem that Norton is failing to address.
Much of Acrobat Pro (DC) requires network activity. Authentication that user has a valid account, generative AI, authentication of signatures, etc. Smart firewall is not picking up that this is legitimate Internet activity and is not detecting which of the many, many applications in the Adobe suite is triggering the network activity. Adobe lists a series of about 300 websites that need to be whitelisted (a minimal set is about 50 sites). There is no convenient way to add that many sites for whitelisting in Norton Smart Firewall.
I have used Norton tools for almost 4 decades (since MS-DOS 3-ish) and only recently has the smart firewall become “aggressive” and less useful because it repeatedly asks to allow access for previously registered applications AND it is not responding to the Acrobat attempt to access the network by asking whether it should be allowed.
Starting to wonder if I need to use a simpler firewall like IPtables.
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