CyberSecBulletin
CVE-2022-26323NVD status: Deferred

Operations Bridge Manager: Incorrect Use of Privileged APIs

CVE-2022-26323 is a high-severity incorrect use of privileged apis vulnerability in Operations Bridge Manager from OpenText, with a CVSS 4.0 base score of 8.7 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Operations Bridge Manager versions: 2021.05 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 0.35% 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 Operations Bridge Manager you run against the affected versions below, and install the vendor's latest release.

Affected products and versions

VendorProductAffected versionsFixed in
OpenTextOperations Bridge Manager2021.05 and earlierNot stated
OpenTextOperations Bridge Suite (Containerized)2021.05 and earlierNot stated
OpenTextUCMDB ( Classic and Containerized)2021.05 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.
Attack requirements
NoneThe attack does not depend on a particular deployment or configuration.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Confidentiality (vulnerable system)
HighSerious loss of confidentiality on the vulnerable system.
Integrity (vulnerable system)
HighSerious loss of integrity on the vulnerable system.
Availability (vulnerable system)
HighSerious loss of availability on the vulnerable system.
Confidentiality (other systems)
NoneNo loss of confidentiality on systems beyond the vulnerable one.
Integrity (other systems)
NoneNo loss of integrity on systems beyond the vulnerable one.
Availability (other systems)
NoneNo loss of availability on systems beyond the vulnerable one.

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:C/RE:M/U:Amber. Scored by CNA (opentext.com).

Official description

Incorrect Use of Privileged APIs vulnerability in OpenText™ Operations Bridge Manager, OpenText™ Operations Bridge Suite (Containerized), OpenText™ UCMDB ( Classic and Containerized) allows Privilege Escalation. The vulnerability could allow authenticated attackers to elevate user privileges. This issue affects Operations Bridge Manager: through 2021.05; Operations Bridge Suite (Containerized): through 2021.05; UCMDB ( Classic and Containerized): through 2021.05.

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

The underlying weakness: Incorrect Use of Privileged APIs

The product does not conform to the API requirements for a function call that requires extra privileges. This could allow attackers to gain privileges by causing the function to be called incorrectly.

How developers prevent this class of flaw

  • Before calling privileged APIs, always ensure that the assumptions made by the privileged code hold true prior to making the call.
  • Know architecture and implementation weaknesses of the privileged APIs and make sure to account for these weaknesses before calling the privileged APIs to ensure that they can be called safely.
  • If privileged APIs make certain assumptions about data, context or state validity that are passed by the caller, the calling code must ensure that these assumptions have been validated prior to making the call.

More Incorrect Use of Privileged APIs vulnerabilities (CWE-648)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Operations Bridge Manager

All Operations Bridge Manager vulnerabilities

Recent Incorrect Use of Privileged APIs vulnerabilities

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