1045_63. [历年真题] In Your Eyes
出处: 2020-CSICTF-Misc-In Your Eyes
题目描述: 'I talk of wondrous things I see, You picture purely out of imagination, You wonder how your light is spent, Days seem bright but you don't know for sure. I stand in your place and close my eyes, What do I see? (Open your windows to see the secret message)'
难度🌟: 6 通过数: 390 标签: CSICTF 图片 隐写 2020 Misc
writeup: 查看
1044_64. [历年真题] unseen
出处: 2020-CSICTF-Misc-unseen
题目描述: With his dying breath, Prof. Ter Stegen hands us an image and a recording. He tells us that the image is least significant, but is a numerical key to the recording and the recording hides the answer. It may seem as though it's all for nothing, but trust me it's not.
1043_65. [历年真题] Panda
出处: 2020-CSICTF-Misc-Panda
题目描述: I wanted to send this file to AJ1479 but I did not want anyone else to see what's inside it, so I protected it with a pin.
1042_66. [历年真题] Archenemy
出处: 2020-CSICTF-Misc-Archenemy
题目描述: ohn likes Arch Linux. What is he hiding?
1041_67. [历年真题] Gradient sky
出处: 2020-CSICTF-Misc-Gradient sky
题目描述: Gradient sky is a begginer level ctf challenge which is aimed towards rookies.
难度🌟: 2 通过数: 897 标签: CSICTF 图片 隐写 2020 Misc
writeup: 查看
1040_68. [历年真题] Modern Clueless Child
出处: 2020-CSICTF-Crypto-Modern Clueless Child
题目描述: I was surfing the crimson wave and oh my gosh I was totally bugging. I also tried out the lilac hair trend but it didn't work out. That's not to say you are any better, you are a snob and a half. But let's get back to the main question here- Who am I? (You don't know my name)
难度🌟: 4 通过数: 117 标签: CSICTF 2020 Crypto
writeup: 查看
1039_69. [历年真题] Quick Math
出处: 2020-CSICTF-Crypto-Quick Math
题目描述: Ben has encrypted a message with the same value of 'e' for 3 public moduli - n1 = 86812553978993 n2 = 81744303091421 n3 = 83695120256591 and got the cipher texts - c1 = 8875674977048 c2 = 70744354709710 c3 = 29146719498409. Find the original message. (Wrap it with csictf{})
难度🌟: 4 通过数: 162 标签: CSICTF 2020 Crypto
writeup: 查看
1038_70. [历年真题] Mein Kampf
出处: 2020-CSICTF-Crypto-Mein Kampf
题目描述: We have intercepted the enemy's communications, but unfortunately, some data was corrupted during transmission. Can you recover the message?
1037_71. [历年真题] The Climb
出处: 2020-CSICTF-Crypto-The Climb
题目描述: We are not lost, we're right here somewhere on this little blue line. Wait, why do I feel like I'm being watched?
1036_72. [历年真题] little RSA
出处: 2020-CSICTF-Crypto-little RSA
题目描述: The flag.zip contains the flag I am looking for but it is password protected. The password is the encrypted message which has to be correctly decrypted so I can useit to open the zip file. I tried using RSA but the zip doesn't open by it. Can you help me get the flag please?
难度🌟: 3 通过数: 428 标签: CSICTF RSA 2020 Crypto
writeup: 查看
1035_73. [历年真题] Rivest Shamir Adleman
出处: 2020-CSICTF-Crypto-Rivest Shamir Adleman
题目描述: These 3 guys encrypted my flag, but they didn't tell me how to decrypt it.
难度🌟: 4 通过数: 131 标签: CSICTF 2020 Crypto
writeup: 查看
1034_74. [历年真题] Scrambled Eggs
出处: 2020-CSICTF-Reverse-Scrambled Eggs
题目描述: I like my eggs sunny side up, but I ended up scrambling them.
1033_75. [历年真题] Esrever
出处: 2020-CSICTF-Reverse-Esrever
题目描述: I encrypted my flag so that nobody can see it, but now I realize I don't know how to decrypt it. Can you help me?
1032_76. [历年真题] pydis2ctf
出处: 2020-CSICTF-Reverse-pydis2ctf
题目描述: I learnt Python in school but I have no clue what this is!
1020_77. [历年真题] Modbus
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-Modbus
题目描述: 工程师通过编程软件对PLC内写入了企业关键敏感数据，请您帮助企业进行查找出相关证据。flag格式为：flag{xxx}。----本题由壹石科技贡献
难度🌟: 8 通过数: 43 标签: 协议分析 2020 工业信息安全技能大赛(ICSC) 流量分析 工业控制(ICS)
1019_78. [历年真题] TJ协议
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-TJ协议
题目描述: 您能找到TJ车联网协议中隐藏的秘密么？flag格式为：flag{}。----本题由壹石科技贡献
难度🌟: 4 通过数: 31 标签: 协议分析 2020 工业信息安全技能大赛(ICSC) 流量分析 工业控制(ICS)
1018_79. [历年真题] ICS TRITON
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-ICS TRITON
题目描述: 某工控系统受到了来自境外的攻击，因为及时干预未造成更严重的损失，工作人员在SIS 工程工作站上发现了一个可疑文件，流量监控系统也捕获到了一部分攻击流量。试根据已有的条件获取攻击攻击者隐藏在流量中的关键信息。flag格式为：flag{}。----本题由袁伟贡献
难度🌟: 7 通过数: 22 标签: 协议分析 2020 工业信息安全技能大赛(ICSC) 流量分析 工业控制(ICS) Reverse
1017_80. [历年真题] 简单的固件逆向分析
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-简单的固件逆向分析
题目描述: 下载附件，逆向固件分析出ftpuser用户的密码。flag格式为：flag{ftpuser用户的密码}。----本题由衡帅贡献
难度🌟: 8 通过数: 42 标签: 固件 2020 工业信息安全技能大赛(ICSC) 工业控制(ICS) Misc
1016_81. [历年真题] 隐藏的木马文件
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-隐藏的木马文件
题目描述: 小明在工业生产现场的数控机床上发现了一个插着的U盘，u盘中都是些图片和文档，细心的小明总觉得这个文件好像有点异常，作为安全运营人员你能发现这个u盘中是否蕴藏着什么秘密呢？flag格式为：flag{}。------本题由恒安嘉新贡献
难度🌟: 7 通过数: 117 标签: 图片 隐写 2020 工业信息安全技能大赛(ICSC) 工业控制(ICS) Misc
1015_82. [历年真题] lize
出处: 2020-工业信息安全技能大赛巡回赛-石家庄站-lize
题目描述: 黑客对工控系统进行了攻击并留下了一个程序，你能破解它并掌握黑客的真正目的么。flag格式为：flag{}。
难度🌟: 7 通过数: 23 标签: Windows 2020 工业信息安全技能大赛(ICSC) 工业控制(ICS) Reverse