Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

  • Synology NAS loses connection after IPS is enabled in LAN to WAN Rule ?

    Hi, I'm struggling to understand an issue I'm facing. It seems like my NAS is losing few functionalities once I activate IPS (lantowan_general) in my LAN to WAN rule. I see some IP being blocked, unable to perform cloud sync, etc.. but it's not clear…
  • V19 or V18.5 : Attack DoS - Soluce ?

    Dear Currently my firewall has a attack DoS. How to stop this attack and eliminate the source IP address of this attack. I have an XG230 in version 19 (and I can also come back in 18.5.3) Thanks a lot
  • XG stops routing

    I've got a ticket open for this, but have no idea how much effort is being put into it. Any extra help gratefully received or our office is going to be offline for most of the weekend. Our XG135 suddenly stopped passing almost all traffic the other…
  • Enabling IPS for internal users?

    How do I enable IPS for the data coming in as a response to client request? If I add iPS to the outbound Traffic to WAN rule will it also apply to the inbound results? I can't see where I can add it to the Traffic to WAN NAT rule.
  • IPS Alerts which I cannot get rid of

    I am getting alerts like this per mail: Alert for SFVH (SFOS 18.5.3 MR-3-Build408) Cxxxxxxxxxxxxxxxxx Device Information: Hostname: gate Management Interface IP: 10.0.0.254 Date/Time: 2022-04-10 16…
  • Understanding IPS Alerts

    I have been receiving 2 IPS alerts regularly. The XG appears to drop the packet, but I am trying to understand the alert and make sure that I don't start disregarding alerts that need attention. The one happens several times a day. SCAN Zgrab Scanning…
  • How to View IPS Rule IDs included in Default IPS Rules?

    Having received a warning from Sophos regarding For CVE-2022-22963 we were advised to check that the IPS rule 2306989 is added to our policy. Some of our rules use custom IPS policies, whereas others use the default ones, i.e. "LAN TO WAN" etc. …
  • OFFICE Microsoft MSHTML ActiveX control bypass attempt

    I need help with the following ips log FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt Thanks Mizan
  • Sophos XG block telegram but i don't want

    Hi, i don't understand why sophos xg mark telegram as DDOS attack.. i have disabled DDOS protection tryied to disable IPS etc from Firewall rule but nothing change... i attached last test i did maybe i'm loosing some configuration? thank yo…
  • FILE-MULTIMEDIA Apple iTunes Playlist Overflow Attempt - What do i do now?

    Hi - I am getting a flood of: =========================================================== Alert for SFVH (SFOS 18.0.6 MR-6-Build655) XXXXXXXXXXXXX Device Information: Hostname: sophos.mylocal.network…
  • Auto-Block an ip that trigger IPS ?

    Looking to mitigate potential attackers in an efficient way. I got a report weekly that i review and the IPS events can be anywhere from 0-5K intrusions attacks logged. Most of this is port scanning and I want to stop it. I'm assuming the answer is…
  • IPS Service Issue 2022/01/25 - (SFOS 18.0.5 MR-5-Build586)

    Checking if anyone had any IPS issues today ? Box at one of my sites picked up an IPS and Application Pattern update in the afternoon and did this . System load got as high as 32 at a stage and had to reload box . Could barely get into the web ui…
  • XGS2100 (SFOS 18.5.1 MR-1-Build326) the internet is so slow

    Dear All Hi I am new to using this firewall and it was installed about a month ago on the network, but since it was installed, the speed of the Internet in the network is very slow, and the ping time exceeds 1000, and I do not have a roll to disable…
  • IPS Logs Missing

    I just upgraded from 17.5 to 18.5 MR 1 but in log viewer it doesn't show any logs for IPS. IPS system service is on. Also, in firewall rules IPS default policies LAN to WAN are applied. In v17.5 logs would show for IPS. What could be the problem…
  • Sophos IPS still applies certain critical rules without policy assigned

    Hello - I was told by support recently that even if I had no IPS policies assigned to my rules that some critical IPS signatures would still be applied on the backend. Its a little bit hard to believe it would do this if there were no IPS policy assigned…
  • IPS Ausnahmen für Schwachstellenscan extern auf Sophos XG

    Hallo zusammen, ich bin gerade auf der Suche die richtigen Einstellungen an einer Sophos XG zu finden um einen geplanten Schwachstellenscan auf die externen IP Adresse der Firewall durchzuführen. Im richtige Ergebnisse zu bekommen, werden die Tests…
  • Information Required for Apply IPS Policy for Different Rules In XG Firewall

    Greetings Sophos Community, I am using Sophos XG Firewall 125. I have Different Inbound and Outbound Rules. On Different Zones like WIFI to WAN, LAN to WAN (I have Applied General IPS Policy) I need Suggestion Is this Policy Type suitable for my Zones…
  • All IPS Signature release notes are incorrect.

    I thought it was weird that Sophos was rating the Log4j vulnerability as the lowest severity, when everyone else in the world considers it a high risk. But it appears that Sophos has just always got their documentation wrong. Looking at all the IPS…
  • alerts keep scaling

    does anybody know what the cause of this alert ? also i want to stop it from it source ?
  • Sophos XGS116 IPS causes severe delay when opening websites

    We are currently deploying an XGS116 running FW SFOS 18.5.1 MR-1-Build326 . We noticed that the IPS feature is causing a severe delay of 3-5 seconds when opening websites. Interestingly enough this delay is also happening when NO IPS policy is applied…
  • V18.5: Custom IPS Pattern cannot be added

    Hi there, I'm trying to add a custom IPS Pattern which does not work as described here: Add a custom IPS signature (sophos.com) The online documentation does not says anything about >> ; <<. Can somone share a working custom IPS pattern example…
  • How to tell if WAF config is working?

    I have gone through the steps in the documentation for configuring WAF and the rule's traffic count increases accordingly when the web server is accessed. However, I can't seem to be able to verify that it is actually being protected. Almost all protection…
  • XG reboot and change in HA Status

    Dear Comminity, I've a customer with an HA pair of XG135 with SFOS 18.0.5 MR-5-Build586. They are facing random reboot of the appliance that force a change HA status. During this reboot they 5/10 minutes of disconnectoin. I've open a sophos case…
  • Antivirus and IPS Engine service stopped in XG 210 firewall

    Hi, I have a sophos xg 210. It was working fine but it recently started to behave strange. The antivirus and IPS engine service is stops, when I restart it stops again and keep doing that. I have just update firmware from SFOS 18.0.5 MR-5-Build586 to…
  • Protect server against brute force attacks

    Is there a service in Sophos XG that automatically blocks the ip of the client that is trying to brute force access a web server? That is, if there is, what can be an effective way to prevent brute force attacks on, for example, an apache server that…