CyberSecBulletin
CVE-2023-41086NVD status: Modified

ACERA 1210: Cross-Site Request Forgery

Published Updated By the CyberSecBulletin desk

CVE-2023-41086 is a high-severity cross-site request forgery vulnerability in ACERA 1210 from FURUNO SYSTEMS, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected ACERA 1210 versions: firmware ver.02.36 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.28% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of ACERA 1210 you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on furunosystems.co.jp for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  4. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
FURUNO SYSTEMSACERA 1210firmware ver.02.36 and earlierNot stated
FURUNO SYSTEMSACERA 1150ifirmware ver.01.35 and earlierNot stated
FURUNO SYSTEMSACERA 1150wfirmware ver.01.35 and earlierNot stated
FURUNO SYSTEMSACERA 1110firmware ver.01.76 and earlierNot stated
FURUNO SYSTEMSACERA 1020firmware ver.01.86 and earlierNot stated
FURUNO SYSTEMSACERA 1010firmware ver.01.86 and earlierNot stated
FURUNO SYSTEMSACERA 950firmware ver.01.60 and earlierNot stated
FURUNO SYSTEMSACERA 850Ffirmware ver.01.60 and earlierNot stated
FURUNO SYSTEMSACERA 900firmware ver.02.54 and earlierNot stated
FURUNO SYSTEMSACERA 850Mfirmware ver.02.06 and earlierNot stated
FURUNO SYSTEMSACERA 810firmware ver.03.74 and earlierNot stated
FURUNO SYSTEMSACERA 800STfirmware ver.07.35 and earlierNot stated
FurunosystemsAcera 1210 Firmware02.36 and earlierNot stated
FurunosystemsAcera 1150i Firmware01.35 and earlierNot stated
FurunosystemsAcera 1150w Firmware01.35 and earlierNot stated
FurunosystemsAcera 1110 Firmware01.76 and earlierNot stated
FurunosystemsAcera 1020 Firmware01.86 and earlierNot stated
FurunosystemsAcera 1010 Firmware01.86 and earlierNot stated
FurunosystemsAcera 950 Firmware01.60 and earlierNot stated
FurunosystemsAcera 850f Firmware01.60 and earlierNot stated
FurunosystemsAcera 900 Firmware02.54 and earlierNot stated
FurunosystemsAcera 850m Firmware02.06 and earlierNot stated
FurunosystemsAcera 810 Firmware03.74 and earlierNot stated
FurunosystemsAcera 800st Firmware07.35 and earlierNot stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.

Official description

Cross-site request forgery (CSRF) vulnerability exists in FURUNO SYSTEMS wireless LAN access point devices. If a user views a malicious page while logged in, unintended operations may be performed. Affected products and versions are as follows: ACERA 1210 firmware ver.02.36 and earlier, ACERA 1150i firmware ver.01.35 and earlier, ACERA 1150w firmware ver.01.35 and earlier, ACERA 1110 firmware ver.01.76 and earlier, ACERA 1020 firmware ver.01.86 and earlier, ACERA 1010 firmware ver.01.86 and earlier, ACERA 950 firmware ver.01.60 and earlier, ACERA 850F firmware ver.01.60 and earlier, ACERA 900 firmware ver.02.54 and earlier, ACERA 850M firmware ver.02.06 and earlier, ACERA 810 firmware ver.03.74 and earlier, and ACERA 800ST firmware ver.07.35 and earlier. They are affected when running in ST(Standalone) mode.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Cross-Site Request Forgery

The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

How developers prevent this class of flaw

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, use anti-CSRF packages such as the OWASP CSRFGuard. Another example is the ESAPI Session Management control, which includes a component for CSRF.
  • Ensure that the application is free of cross-site scripting issues (CWE-79), because most CSRF defenses can be bypassed using attacker-controlled script.
  • Generate a unique nonce for each form, place the nonce into the form, and verify the nonce upon receipt of the form. Be sure that the nonce is not predictable (CWE-330).

More Cross-Site Request Forgery vulnerabilities (CWE-352)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Third-party and government advisories

Other vulnerabilities in ACERA 1210

All ACERA 1210 vulnerabilities

Recent Cross-Site Request Forgery vulnerabilities

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