System security vulnerabilities, also kn子爸司遠own as system weaknesses, refer to defe紙相議冷cts and deficiencies in the hardware, softw新看吧看are, protocol design, specific implementation,多腦放又 and system security policies of a答關舊村 computer system.
System vulnerabilities are rela窗熱學紙tive to system security. From a broad p女謝農日erspective, any factor that請場北數 can potentially affect or compromi那樹自腦se the security of a system can be considered a和水街會 system security vulnerability. The existence of 事請聽關security vulnerabilities al事山少土lows unauthorized users哥不嗎訊 to exploit these vulnerabilities to gain頻妹現金 certain system privileges and p美都關爸erform illegal operations, leadi錢看器高ng to security incidents. The goal of v藍國內紙ulnerability detection is to資但機煙 proactively discover and patch vulnerabilitie鐘理會線s before they are exploited. In this arti慢高懂還cle, the author shares several met線用坐鐵hods of detecting vulnerabilities 民街跳是based on their own practical experience.
Vulnerability detection can be divided in不了就門to detecting known v南那的黃ulnerabilities and detecting unknown短照國什 vulnerabilities. The detection of known vulnera要輛外得bilities is mainly done through securit關家睡錢y scanning techniques to detect wh海謝離購ether the system has publicly d空術術煙isclosed security vuln吧照機計erabilities. On the o她北著城ther hand, the purpose of detec著我錯民ting unknown vulnerabilities i又子年謝s to discover vulnerabilities that may exist in 聽為相志software systems but have no她錯有數t been discovered yet. Existing techniques for 拿紅來他detecting unknown vulnerabilities include source 月弟了短code scanning, disassembly sc哥看少這anning, and environment error in明玩章熱jection. Source code scannin樂低厭校g and disassembly scanning are both static 紅東金日vulnerability detection techniques that an商弟紅自alyze potential vulnerabilities in the program數近空慢 without running the softwar物器看懂e program. Environment er匠的也空ror injection, on the other hand, is a dyna制讀火長mic vulnerability detection te開理日門chnique that uses executabl西下新又e programs to test for vulnerabilities and is a 從刀生些mature software vulnera店匠慢業bility detection tech厭問討資nique.
Security Scanning:Security scanning, also kno花志劇話wn as vulnerability assessment, invo信匠間我lves simulating black-hat attacks to syste務月鐵紙matically detect pot問門錯我ential known security vulnerabilities in v明草明錯arious targets such as workstat他林鐘謝ions, servers, switches, databa玩身森如ses, etc.
So far, security scanning路森山好 technology has become quit黃城書開e mature. Security scanning technique我員資刀s can be broadly classified into two cate上個時書gories: host-based security scanning and n慢花水務etwork-based security scanning. Based 劇南的男on the scanning process, scanning techniques 機得慢兒can be further divided into four categori音們拿門es: Ping scanning, port scanning, operating 子雪跳服system detection scan農做聽舊ning, and known vulnerability scanning.
Security scanning plays an increasing制這還金ly important role in ensuring network securit章煙銀空y. With the help of scanni這動光得ng techniques, people can disc亮校小空over open ports, services provided, certain sy聽短慢河stem information, erroneous con請妹信學figurations, known security vulnerabil小舞空微ities, and more on networks and hosts. 兒公新電System administrators時身答老 can use security scanning techniques to identif司妹答會y weak points that could be exploited by attac風月鐘自kers and take measures to str校妹子通engthen the security of networks媽白廠白 and hosts. At the s放舞木舞ame time, attackers can also use sec個子數林urity scanning techniques to explor大窗城公e potential entry poi刀可呢外nts in network and host systems. However, th影鄉老場e actions of attackers also contr她國刀女ibute to enhancing network and host身請船了 security because vulner站資間訊abilities objectively e歌海呢民xist but have not been discovere玩了我西d yet. Once a vulnerability is disc窗木技煙overed and exploited by attackers, it can also空近林歌 be recognized by security 資影的志professionals.
A security scanner is a program th愛事就報at automatically detects security vulnerabilit車說雪制ies in remote or local hosts b黑月媽新y collecting system information. It perfo們間車了rms a step-by-step check for potential known s喝公機嗎ecurity vulnerabilities using si能得窗月mulated attacks. The targets can include低器少窗 workstations, servers, swit西空我舊ches, databases, and various other objects. In ge謝秒影慢neral, security scanners provide comprehensive亮自快們 and reliable security analysis rep票城農我orts to system administrators based on the下見雨路 scan results, providing importa這山雜生nt information for improving the o體黃可答verall level of network security.
The nature of a security scanner determines tha請她藍會t it is not a program that街煙匠弟 directly attacks security vulner通人裡習abilities. Instead, it helps us identify weaknes報一笑知ses in target hosts. A good security秒黃務船 scanner can analyze the detected data and 器好紙離assist in finding security vulnerabilities in森會資快 the target host, pr就東路明oviding corresponding recommendation秒器技唱s.
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