UN peacekeepers are accused of sexually abusing children and the UN seems to have tried to cover it up. See the news report on Democracy Now. The suspended French soldiers are probably not the only cases in what is called pandemic. By the way, why are they only suspended and not arrested?
However, this is not only happening under the wings of the UN. From before, we know that impunity for perpetrators and ill-treatment of whistleblowers is in reality widespread among many nations. This culture of impunity is actually the root of so many of the human rights violations, wars and huge environmental problems.
For the UN to tackle its own culture of impunity would be a good start, but we must face that the problem is much bigger.