CyberSecBulletin
CVE-2022-28171NVD status: Modified

DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A7202…: Improper Neutralization of Special Elements used in a Command

Published Updated By the CyberSecBulletin desk

CVE-2022-28171 is a critical-severity improper neutralization of special elements used in a command vulnerability in DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024D from Hikvision, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024D versions: V2.X through V2.3.8-6. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 51.6% chance of exploitation within 30 days, which is in the top 1.04% of all scored CVEs.

Patch now

Exploitation in the next 30 days is more likely than not, according to EPSS.

What to do

  1. Check which version of DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024D you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on hikvision.com 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.

Affected products and versions

VendorProductAffected versionsFixed in
HikvisionDS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024DV2.X through V2.3.8-6Not stated
HikvisionDS-A71024/48R-CVS,DS-A72024/48R-CVSV1.X through V1.1.4Not stated
HikvisionDs-a71024 Firmware2.3.8-6 and earlier; 1.1.4 and earlierNot stated
HikvisionDs-a71048 Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a71072r Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a80624s Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a81016s Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a72024 Firmware2.3.8-6 and earlier; 1.1.4 and earlierNot stated
HikvisionDs-a72072r Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a80316s Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a82024d Firmware2.3.8-6 and earlierNot stated
HikvisionDs-a71048r-cvs Firmware1.1.4 and earlierNot stated
HikvisionDs-a72048r-cvs Firmware1.1.4 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
NoneNo action by a victim is required.
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:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (hikvision.com)
CVSS 3.19.8CriticalNVD
CVSS 2.07.5HighNVD

Official description

The web module in some Hikvision Hybrid SAN/Cluster Storage products have the following security vulnerability. Due to the insufficient input validation, attacker can exploit the vulnerability to execute restricted commands by sending messages with malicious commands to the affected device.

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

The underlying weakness: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

How developers prevent this class of flaw

  • If at all possible, use library calls rather than external processes to recreate the desired functionality.
  • If possible, ensure that all external commands called from the program are statically created.
  • Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.

More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)

Timeline

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

References

Third-party and government advisories

Technical write-ups (may include proof of concept)

Other vulnerabilities in DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024D

All DS-A71024/48/72R,DS-A80624S,DS-A81016S,DS-A72024/72R,DS-A80316S,DS-A82024D vulnerabilities

Recent Improper Neutralization of Special Elements used in a Command vulnerabilities

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