"Dean Qin, last night I discovered a vulnerability in our Qichacha software."

Qing Yun, who swallowed the egg yolk and was about to speak to drive people away, choked in his throat in one breath, and suddenly bent over and coughed, Tang Qianying and Qin Manman, who were opposite, were startled and hurriedly brought him a tissue.

The yolk is no joke.

Su Caiwei snickered in her heart, there is really a reincarnation in heaven!

Don't you love to use this trick?

The teacher will teach you a lesson today!

Su Caiwei has always been haunted by Qingyun when she and Shi Guangyong were played by Qingyun three times and twice during their last visit, and today she saw the right time to teach this bad student in the same way, what is called 'empathy'!

However, she still looked panicked on her face, and patted him on the back at a loss.

She was the closest, and at this point, Qin Manman and Tang Qianying didn't say anything, they just stood up and looked worriedly.

The movement was a bit loud, which naturally attracted the attention of the people in the restaurant.

However, after a few glances, everyone turned their heads and ate their breakfast tastelessly.

It's too abusive for dogs.

A cough, three charming beauties are waiting in a hurry, this life is ......

Choked to death, deserved it!

Half-sounded, Qingyun poured saliva hard, and then sneezed twice before he gasped, looking at Su Caiwei with unkind eyes.

He didn't know if she did it on purpose, but he knew that this Xiao Su teacher was not well-intentioned.

When beating the back, it was obviously a heavy hand.

Hehe!

It's hard to prevent Lao Tzu from playing with dark arrows, right?

Don't let me take your chance!

Su Caiwei understood his eyes, and smiled secretly in her heart, but in a pair of fawn eyes, she showed a panicked look, and opened her mouth with three points of grievance, "I'm sorry, classmate Xiaoqing, I was also in a hurry just now, and I didn't control my strength." ”

Qingyun nodded, "What loophole did you just say?" ”

He didn't bother to talk nonsense with her, and quietly glanced at Su Caiwei's waist and hips, and then hurriedly pressed the evil fire in his heart.

This Xiao Su's figure is really a bit foul.

And unlike Tang Qianying and Chen Yue, Su Caiwei is a few years older after all, and like Qin Manman, who is already a woman, she is more mature and round.

It's a pity!

What a pity!

Su Caiwei ignored him, but turned her head to look at Qin Manman, "Last night, when I was reading the source code of Qichacha software, I found that there was a vulnerability in the buffer.

Our programmers usually give a certain byte buffer to the function, such as this one. ”

She pulled out the notebook she had brought with her......

Paper notebooks.

This shocked Qingyun.

What surprised him was that Su Caiwei and Qin Manman were two people.

Can they not look at it on a computer, without a compiler?

This is kind of subverting his perception.

Could it be that the jokes on the Internet are true?

"Power outage? In a power outage, you don't write the code with a pen and paper first, and then enter it into the computer after the call? Isn't it, hard? Am I asking too much? —Lin'an Ma.

Well, programmers in the eighties and nineties did have this skill.

At that time, computers had not yet been popularized to the public, and if you wanted to program, the best way was to go to the school computer room, but the school computer room was also expensive, and not all computer rooms were free.

Therefore, at that time, many programmers could only buy a notebook, pick up a pen, write the code, and finally go to the computer room to input, debug, and run, which can save a lot of costs.

However, at the beginning of the century, the computer gradually changed from a high-tech product to a household appliance, so this skill was basically lost.

Only in another ten years, those big Internet companies, in order to screen people, will re-sacrifice such a magic weapon.

In Emperor Yun's cognition, Qin Manman and Su Caiwei definitely do not belong to the group of people who can't afford to use computers, so they ......

This is a strong basic skill.

Qin Manman took the notebook, looked at it twice, and instantly frowned, "When int verify_password (char *password) is executed, if the stack overflow technique is used, there will be problems here. ”

Su Caiwei nodded, "If we enter a password that exceeds the required characters, the ASCII code of the out-of-bounds character will modify the authenticated value. If the overflow data happens to change authenticated to 0, the program flow will be changed. In this way, it is possible to successfully modify the authenticated adjacency variable of the buffer with an invalid extra-long password, thus bypassing the password validator ......"

Qingyun and Tang Qianying on the side could only compare the size of their eyes, and the two of them said that they didn't understand, they couldn't understand at all.

This is not an area they should be exposed to.

Qin Manman could understand, took Su Caiwei's pen and began to compare, and then began to discuss with Su Caiwei in a whisper.

Every word in the two of their mouths, even in English, could be understood by Emperor Yun and Lord Qianying, but when they were combined, they thought that the two women were just speaking bird language and bullying people.

The bored two can only do small movements under the table in concealment.

The action should not be too big, so as not to affect the empress who has already entered the working state.

Mainly, it's the right thing.

Under the grasp of the main contradiction, Qingyun still roughly understood what they were talking about.

It is that there is a vulnerability in the password verification system of Qichacha software, which is easy to be breached.

He knew what was going on when he thought about it.

In the past, TOP software was generally made in a stand-alone version or an intranet version, so there was no need to think about this problem.

But the current requirement is the network version, and the problems of the stand-alone version in the Shishan code have been ignored.

At this moment, what he needs to consider is whether to take the opportunity to play and give the group of programmers in the software institute a killing stick.

Although he also understands that this kind of old code, which is known as Shishan Mountain in the industry, is not as easy to change as imagined.

In fact, among programmers, there is a common belief that if the code can run, it should not be moved.

The so-called pulling a hair and moving the whole body, and the code does not move well, is 'collapse and cracking'.

Although it is the secondary development of the old software, under his time limit, everyone must be lazy, but the times are different.

The biggest difference is the difference between stand-alone software and network software.

If you don't consider security, just rely on the software positioning for government agencies and units, and Yanhuang Group will have no good fruit to eat.

After Qin Manman and Su Caiwei discussed the revised plan, Qingyun nodded the table and looked at Qin Manman with a serious face, "Grab it, be ruthless, and kill a few people if necessary." ”

Qin Manman didn't say anything yet, but Su Caiwei panicked, "Mr. Xiaoqing, it's not necessary, it's just a small problem." ”

When she said this loophole, her original intention was to mix up the time with acting, mix up this breakfast reasonably, and cause misunderstanding among others.

But now that she was about to be expelled, her conscience was very disturbed.

(End of chapter)